| Subject | Date Asked |
|
| 1998 GMC Savanna 350 will not start | 11/1/2009 |
Q: I have a 350 Savanna that will not start all the time, and when it does the engine will stall after ...
A: My best answer would be to check the fuel pressure when it will not start. Guessing will only cost ...
|
| 2004 Yukon Denali XL won't start | 9/1/2009 |
Q: The family and I went to the mall tonight. Came back to the Denali and she would not start. We are ...
A: Sounds like a classic battery failure. I am SURE it will just be a battery. You can take the battery ...
|
| 02 Chevy Express 2500 5.7L V8 | 8/31/2009 |
Q: This vehicle is similar to GMC Savana & has about 80560 miles. Over the past year or so, I've ...
A: Not being a true paint and body man, anything will be a guess. It may be something inside the door, ...
|
| truck is putting out black smoke | 7/29/2009 |
Q: I have a 2001 4x4 with a 4.6 motor.I recently cut the cat- inverters out .My problem is every now ...
A: What was the code? p0174? or p0171? I would check the fuel pressure rguulator (small round regulator ...
|
| 2001 gmc sierra sle 5.3 373 gear swap | 7/29/2009 |
Q: Rear rear is clunking into gear. Ujoints are fine, lots of play when feathering throttle off slow. ...
A: First, my personal opinion is UNLESS your differential is making any noises (roar, whine, whirr, ...
|
| 2002 GMC Envoy SLT | 4/12/2009 |
Q: 2002 GMC Envoy SLT (6 cylinder) – starts fine when cold (for example, first thing in the morning). ...
A: If this is an 02 Blazer Envoy package, with the 4.3L V-6 engine and it cranks but does not start, my ...
|
| '98 Pontiac Grand Am problem | 1/13/2009 |
Q: Recently put 2 new alternators in, and battery is fully charged but when driven the car lights fade, ...
A: Sounds to me like you MAY have a different issue. I would take it to a GOOD reputable shop and have ...
|
| Brakes | 1/13/2009 |
Q: I recently had a brake job done on my 95 Blazer, when I come to a full dead stop and I begin to move ...
A: If rears were do when brake job was, I would take it back, and let them repair it under warranty. ...
|
| optimum temperature | 1/12/2009 |
Q: 2000 GMC K2500 pickup 5.7l vin code R Problem temp gauge hovering at 160. Changed thermostat 2x, new ...
A: Could be a guage issue, have vehicle scanned and look at ECT temp on a scan tool vs. temp displayed ...
|
| GMC Dome / Back-up Light Problem | 1/12/2009 |
Q: 2003 GMC Sierra - Interior lights and backup lights have quit working. These are also used for ...
A: If you could have vehicle checked with a scan tool that has ability to see BODY data, this would cut ...
|
| 2002 GMC misfire | 1/12/2009 |
Q: I have a 2002 GMC sierra 4wd pickup that is having major issues but no one knows exactly what. It ...
A: if the misfires are on 3 or 4 adjoining banks (eg.2,4,6,8 or 1,3,5,7) then I would suspect either a ...
|
| Strange Noise | 11/17/2008 |
Q: I had an oil change a couple of weeks ago, on my 2005 Yukon SLT @ 86,000 miles. Since then when I ...
A: My dates messed up! It sounds like it is probabally the Sun reaction shell gear, inside the ...
|
| Headlight sockets 2003 Envoy | 11/16/2008 |
Q: I have a 2003 Envoy and the headlight sockets keep burning out. The dealer replaces them at a fee ...
A: My guess, without seeing vehicle, is wrong bulbs. If there is too much current flow, it will get too ...
|
| Strange Noise | 11/16/2008 |
Q: I had an oil change a couple of weeks ago, on my 2005 Yukon SLT @ 86,000 miles. Since then when I ...
A: First I re set my vacation dates as i have just recently lost my brother, and have been busy with ...
|
| 2001 gmc sierra seats | 11/16/2008 |
Q: I have 300k miles on my 2001 gmc 2500hd sierra and the seats are trashed. I've found a 60/40 front ...
A: Yes they will fit, but (depending on what is in truck now) you may have to trim carpet. Now the ...
|
| 2000 gmc K2500 6.5l starter problem | 9/23/2008 |
Q: the starter will not active with key switch. the neutral safety switch has been bypassed and the ...
A: check the security light. Is it on, blinking or on then off? If it stays on longer than bulb check ...
|
| fan clutch noise | 8/29/2008 |
Q: Mazda Bongo 1998 truck (Motorhome), diesel 2200lt. Originally when travelling a loud roaring fan ...
A: Just using basic knowledge of fan clutch operations, it does indeed sound as if the fan clutch is on ...
|
| electrical problem | 8/29/2008 |
Q: I have a 6.2 diesel suburban, brand new alternator, 2 brand new batteries and they will not charge ...
A: What is the rate of charge off the back of alternator? If it is proper 13.5-14.5V then you have a ...
|
| IAH probelm 2002 GMC HD2500 | 8/28/2008 |
Q: The 540 DTC showed up again, so I will probably be replacing the Intake Air Heater relay on my 2002 ...
A: I would look at possible causes for the relay burning. A small short to (-). A bad heater element. ...
|
| milage/smog check prep | 8/28/2008 |
Q: Good Morning, I have an 02 Sierra 1500 SLT 5.3L with 93k on the Odometer. I have a SMOG Check due ...
A: Before I change plugs, I would change the fuel filter and air filter. A drop that significant in MPG ...
|
| Cam Shaft Position Sensor | 8/26/2008 |
Q: I own a 2002 GMC Yukon 4.8L. Took the truck to Auto Zone. Diagnostic Testing states faulty CAM shaft ...
A: It is not taht hard, but it is not easy. It is located on REAR of engine, on block deck, in area ...
|
| Reverse lights don't work | 8/26/2008 |
Q: I have a 1999 Suburban 1500 4x4. My reverse lights are not working. I have changed the bulbs, ...
A: You'll need to check and see if you have power (key on engine off) on the LIGHT GREEN wire at the ...
|
| 89 chevy 1500 front axle | 8/26/2008 |
Q: greetings, got a 89 4x4 that wont engage, looked under and noticed passenger side axle sticking out ...
A: I do not have any information on a 1989 unit, but the right axle yube will unbolt from the carrier ...
|
| blower not working | 8/25/2008 |
Q: I have a 2002 gmc SLE envoy and when we bought the car, the fan controls the heat and a/c blowing ...
A: I would suspect the blower resistor, which is located next to the blower motor, passanger side, ...
|
| engine noise 2005 gmc envoy | 8/24/2008 |
Q: I am getting an increasing loud noise (whine)from my 2005 GM envoy 4.6 A mechanic suggested to ...
A: It is MOST likely the Belt idler pulley, which is on the drivers side between the Alternator and A/C ...
|
| 2004 Chevy Silverado | 8/24/2008 |
Q: I actually have 2 questions. The 1st one being how do you reprogram the key fobs on the 2004 models ...
A: 1st.... Important: All transmitters which are to be recognized by the PDM must be programmed in a ...
|
| timing/99 gmc ykon | 8/23/2008 |
Q: I replaced the enire distibutor ( ear for cap broke off) on my 99 gmc yukon(5.7), how to you set ...
A: There is no bypass. Put the enginer on TDC #1 cylinder compression stroke. Important: Rotate the ...
|
| computer reset for 99 gmc sonoma 4.3 vortex | 8/23/2008 |
Q: Need to know how to reset computer due to rotor button breaking replaced button but would idle but ...
A: There is not way to reset PCM. My best advice is to remove dist. Put engine on TDC #1 compression ...
|
| GMC Yukon Reverse Issue | 8/23/2008 |
Q: 98 GMC Yukon 5.7L. Was reversing into my driveway (as ? b/4 by someone else), however, was in ...
A: I would HIGHLY suspect the reaction shell. When they go, it is VERY similar to the symptoms you ...
|
| 2002 GMC SONOMA PART TIME 4X4 NO REVERSE | 6/23/2008 |
Q: TRANSMISSION 4 SPEED AUTOMATIC. 170,000 MILES JUST GOT IT SO I DON'T KNOW MUCH BACKGROUND EXCEPT WAS ...
A: Sounds like the reaction shell (sun shell) is stripped. It is an easy fixfor any tranny tech. It ...
|
| dome light and dash indicator all 4 doors open | 3/1/2008 |
Q: 2001 Chevy Malibu v6 3100 engine Why does dash indicator show all four doors open and dome light ...
A: I would suspect possibaly the BCM (Body Control Module). BEFORE you replace this expensive part, I ...
|
| Rear Climate Control | 2/26/2008 |
Q: 2003 Yukon: the rear heating unit is only blowing cold air. Could this be caused by low coolant ...
A: I would more likeley suspect the Mode door for the rear HVAC system. If you could take it to a shop, ...
|
| A/C problems | 2/8/2008 |
Q: I recently bought a 2001 GMC Z71. Air conditioner worked at all speeds. Heater never blew hot air. ...
A: The blower speed is PROBABALLY the blower resistor. The temperature is PROBABALLY the temp door ...
|
| 1998 Jimmy - Heater and ABS ?'s | 2/7/2008 |
Q: 1- Just picked up a 1998 Jimmy that needs a little love. First issue is that the heat seems to be ...
A: As far as scanner, alot now do ABS and PCM. Check autozone, NAPA, etc... it will probabally depend ...
|
| 2002 5.3L (L59) FlexFuel Intake Bolt Tightening Seq. | 2/6/2008 |
Q: I have a 2002 Tahoe with a 5.3L FlexFuel engine (VIN "Z") with a failing intake gasket. Is the ...
A: Removal process same. here is the torque specs. Install new intake manifold gaskets (1) to the ...
|
| 99 gmc sierra | 2/6/2008 |
Q: I have a 99 gmc sierra, 5.3 with a loud belt squeal. I changed the serp. belt, but still squelling. ...
A: If you remove the belt and start vehicle is squeel still present? If so, it MAY be the A/C serp belt ...
|
| Transmission problem maybe? | 2/3/2008 |
Q: I have a 2005 GMC Yukon XL 1500 4 Wheek drive. It has 44000 miles on it and has well maintained. I ...
A: If I understand correct, you have NO forward OR reverse? If this is correct, I would HIGHLY suspect ...
|
| Tahoe Blower Motor won't stop | 2/3/2008 |
Q: I have a 2001 Chev Tahoe 4wd 5.3 l with climate control. For the second time during cold spells ...
A: I found 2 bulletins for some issues on this vehicle, but neither addresses your concern of the ...
|
| 98 Jimmy-Wiper Cowl and Braking | 2/2/2008 |
Q: Purchased a used Jimmy this winter, costs me $300 every other week to fix things. My newest dilemma ...
A: I first would not mess around with the brakes.....take it somewheres and have it PROFESSIONALLY ...
|
| Couple Questions about my 2001 Yukon Denali | 1/31/2008 |
Q: First of all... I wish there was a decent search feature on here so that people dont keep on ...
A: First I agreee about the searching, but I would think it would be better suited for an automotive ...
|
| 05 Tahoe Blower/Resistor front | 1/24/2008 |
Q: I have an 05 Tahoe WITHOUT 5 steps on the blower control it has a reostat type blower control, ...
A: I think the parts department may have sold you the wrong part for your vehicle. The bulletin is for ...
|
| Battery not charging | 1/23/2008 |
Q: I have 2003 GMC Envoy XL and keep getting "battery not charging" message in display. Battery is ...
A: I do not see an Aux. battery in this vehicles system or schematics. If it was installed ...
|
| 2002 Enovoy heated seat Hot Spot | 1/23/2008 |
Q: My 2002 GMC Envoy has developed a Hot spot on the Drivers seat. Would that be a bad element, and if ...
A: It does sound like a faulty heater element. They are avalible from GM I know for sure. Aftermarket, ...
|
| 98 Chev 5.0 L 305 V8 K1500 4x4 automatic | 1/22/2008 |
Q: I want to know what effect a change in intake air temperature has upon my truck's PCM. Does ...
A: Here is a breif description of the circuit description: The intake air temperature (IAT) sensor is ...
|
| 2001 GMC Jimmy PO300 code | 1/22/2008 |
Q: I took my vehicle in because the engine light was on. The repair shop ran diagnostics on it and ...
A: P0300 can be many different items. ANY fuel, ignition, or engine mechanical problems CAN cause a ...
|
| camshaft position sensor | 1/21/2008 |
Q: I own a 2005 GMC Envoy Xl and my code reader has stated that the camshaft position sensor is faulty. ...
A: The camshaft Position sensor (CMP) Is located on the front of head, directly above the belt. Small ...
|
| Duramax Smoking again | 1/19/2008 |
Q: I have an 03 GMC Sierra with 6.6 Duramax. Injecters were replaced under warranty at 80k miles as ...
A: LB7 engine code I would HIGHLY suspect 1 of the injectors. I have recently run into repalcing ...
|
| front end vibration | 1/19/2008 |
Q: I own a 2000 GMC Sierra and have been noticing that at about 40 mph I pick up a vibration in the ...
A: I would have the vibration diagnosed by using an EVA (Electronic Vibration Analyzer). It will give ...
|
| lift motor | 1/13/2008 |
Q: is there any thing i should be concerned about changing the passenger side window lift motor in a ...
A: It is pretty straight forward, only thing is when replacing motor from regulator, you'll need 4 ...
|
| gmc service 4wd | 1/13/2008 |
Q: i have a 03 gmc k1500hd, w/ quadrasteer. i have a service 4wd that shows on my readout. at start up ...
A: I would advice you, so you dont spend anymore money on unneeded replacement of expensive parts. It ...
|
| Installing a power steering pump 2000 Safari | 1/11/2008 |
Q: My boyfriend needs to know how to Install a Power Steering Pump on a 2000 Chevy Safari. I do not ...
A: Here is the EXACT procedure from GM SI. Remember the P/S Pulley has to be removed ON VEHICLE as the ...
|
| 2004 envoy xl, v8 slt | 1/11/2008 |
Q: i let the car sit for a week or so in the cold and when i went to use it the battery was dead. but ...
A: Here is the 30 min. learn procedure for the VTD system. I personally have never had an Envoy go into ...
|
| Instrument Panel Light Don't Work | 1/10/2008 |
Q: I just purchased a 2001 Pontiac Bonneville SSEi, and most of the instrument panel lights don't come ...
A: Do the little lights in the door switches work (eg..for the window up/down, door lock, etc... AND ...
|
| heater/defrost is not working | 1/9/2008 |
Q: I have a 2000 GMC Yukon XL 1500 it has the climate control on both dash and in the roof for the back ...
A: I would advice 2 items to check... 1) have him feel the heater hoses going into the dash after truck ...
|
| 1999 GMC Sierra trailer plug | 1/8/2008 |
Q: We have a factory installed trailer plug. When we hooked up our trailer it worked good. After a ...
A: I would almost be CERTIAN it is NOT a short but a faulty ground. If you use a test light and test ...
|
| no heat out of vents | 1/6/2008 |
Q: I just purchased a 2001 GMC Sonoma ZR2. It has the 4.3l V6 engine and automatic transmission. My ...
A: There is no valve that llows coolant into the core. Hot coolant passes through it all the ...
|
| 2002 GMC Envoy | 1/6/2008 |
Q: My vent switch (the one that changes heat / ac to floor, defrost, mix etc) makes a clicking noise ...
A: The part is called the "Mode Actuator". VERY COMMON, I have one waiting for me Monday AM. I am ...
|
| GMC Envoy | 1/6/2008 |
Q: I have a 2002 GMC Envoy that has been a great car for the most part. Last month, as I was parking ...
A: It sounds like the reaction sun shell inside the transmission has failed. It is a fairly common ...
|
| Follow-up question to another post | 1/5/2008 |
Q: I have a 2003 Yukon with the 5.3 and need to replace the intake gasket due to hesitating and engine ...
A: After removal of manifold, Use a straight edge for this procedure...... The intake plenum should ...
|
| Safari will not start | 1/4/2008 |
Q: I have a 99 GMC safari 4.3. Engine cranks fine but will not start. Fuel pump is not coming on. ...
A: I would FIRST see if the "security" light on dash is on. It IS possible the vehicle is in VTD Fuel ...
|
| fan clutch runs continuesly | 1/4/2008 |
Q: my 2000 GMC Sonoma 4 cyl plain Jane has a noisy fan, it runs constantly even when cold, this began ...
A: ONLY repair for a fan clutch is replacement. here is the total GM diagnosis for the fan clutch..... ...
|
| GMC Sierra 2002 Reverse issue | 12/30/2007 |
Q: My GMC Sierra 2002 1500 4x4 reverse went out when backing into my driveway in 4 wheel drive. Sounds ...
A: From the revving to change gears and the park noise (a metallic noise?) it then sounds VERY much ...
|
| 2004 GMC Envoy XL | 12/29/2007 |
Q: Help...just moved across country and had my baby serviced at the GM dealer before I traveled over ...
A: I think you'll be OK to drive it to service place....say as long as you drive it less than 20 miles. ...
|
| 2004 GMC Envoy XL | 12/29/2007 |
Q: Help...just moved across country and had my baby serviced at the GM dealer before I traveled over ...
A: It REALLY sounds like the belt idler pulley MAY be your problem. It is a fairly common failure. It ...
|
| 99 Yukon Heater Valve Solenoid | 12/28/2007 |
Q: My 1999 Yukon (with 5.7L engine) heater valve solenoid allows vacuum to pass through at all ...
A: .. OK I understand your question better now...( I thought you where having a prob with the valve ...
|
| GMC Sierra 2002 Reverse issue | 12/28/2007 |
Q: My GMC Sierra 2002 1500 4x4 reverse went out when backing into my driveway in 4 wheel drive. Sounds ...
A: Is the transfer case motor moving? Can you hear it clunking? If so You probabally have an internal ...
|
| 99gmc jimmy fuel porb no start | 12/28/2007 |
Q: filled gas tank full, drove 25 miles. car sat for about 2 hours, now wont run.<it will start,run for ...
A: 60-66 all the time. It takes this pressure to for fuel to atomize when nozzle is injected ...
|
| 1999 Buick LeSabre LE | 12/27/2007 |
Q: I had my 1999 Buick LeSabre LE, 350 V6, in the shop in April,07 because it wouldn't crank. They ...
A: It sounds to me like the switch is installed improperly OR it is mis adjusted. The key cylinder may ...
|
| 2006 Yukon Denali Front Seat disassembly. | 12/24/2007 |
Q: I have this questions specifically for the arm rest. How do I take the arm rest off of my seats? I ...
A: The rear seat cushion cover needs to be rolled up and when you get close to the armrest, inside ...
|
| hard starting after hot | 12/24/2007 |
Q: I have a 1998 GMC 4.8 SLT 4x4 veh starts great when cold, after running for a while and I turn off ...
A: A 12/98 will be a 1999 YEAR model. Anyways, it REALLY sounds like you have a fuel pump problem OR ...
|
| gmc yukon 2003 | 12/23/2007 |
Q: My yukon has 5.3 v8 engine.It was stalling at lights,so my husband took it in and had it ...
A: Intake Manifold Replacement Removal Procedure Important: The intake manifold, throttle body, fuel ...
|
| 97 GMC Sierra ABS | 12/22/2007 |
Q: I have a 1997 GMC K1500 Sierra with the 5.7 350. About 5 months ago, i started having issues with ...
A: I would advice taking it and having the ABS system scanned for codes. This will lead you to the ...
|
| gmc yukon 2003 | 12/22/2007 |
Q: My yukon has 5.3 v8 engine.It was stalling at lights,so my husband took it in and had it ...
A: I would try the library or go to local dealership and ask for pic's from SI. I cannot send pics out, ...
|
| 2002 gmc yukon | 12/21/2007 |
Q: I have a 2002 gmc yukon with a 4.8L aoto transmission, 4dr 2wd. While driving down the road the ...
A: The pump may "kick on" but is it pumping?? There is the determining factor. A GOOD mechanic will ...
|
| 2006 GMC Savanna mirror turn signals | 12/19/2007 |
Q: How do I change the bulb in the mirrors on a GMC Savanna?
A: Is it the LED type signal flasher in the mirror glass? IF So the glass will need to be replaced ...
|
| 2002 GMC Yukon Seat Heater | 12/19/2007 |
Q: I have a 2002 GMC Yukon XL Denali w/ 6.0. The drivers seat quit working about a year ago. The ...
A: First quick checks SEO fuse under hood fuse block IGN 3 fuse, drivers side fuse block if either ...
|
| 98 GMC sonoma Tranny question | 12/18/2007 |
Q: I have a 1998 GMC sonoma 4.0 V6 5 speed. The transmission has made no sounds, or shown a fluctuation ...
A: I would HIGHLY suspect either the shift fork or the shift shaft being your problem. These items are ...
|
| Savana 2002 vortec 5700 v8 sfi engine problems | 12/17/2007 |
Q: I bought this truck new and started having issues in the first year. The dealer claimed they could ...
A: I would guess it is an oxygen sensor. ESPECIALLY if the misfires are all on one side (even or odd ...
|
| Won't stay running | 12/16/2007 |
Q: I got a 2002 GMC Denali XL V8. The truck was running fine until I came up state. I put about 4 or 5 ...
A: My best guess would be the fuel pump. Everything you state sound just like a fuel pump. You could ...
|
| 2002 GMC Duramax 6.6l | 12/15/2007 |
Q: I noticed alot of fuel leaking from the small drain hole between transmission and engine. I drained ...
A: It is the injectors. You MAY still have warranty there is a special policy for the injectors to ...
|
| 98 s-10 2.2 | 12/15/2007 |
Q: My 98 s-10 2.2 engine temp won't go over 100 so the heater and defrost doesn't blow hot. I checked ...
A: I would HIGHLY suspect the heater core. You MAY be able to reverse flow and clean it out. Feel the ...
|
| 2003 Yukon HVAC Blower not working properly | 12/14/2007 |
Q: I have two issues: First, I have a dual climate control system and the blower on the front will ...
A: The first issue is MOST likely the Front Blower Motor resistor going bad. It is located right next ...
|
| YUKON BRAKES | 12/14/2007 |
Q: 1998 YUKON 4X4 VORTEX V8, ABS PUMP ACTIVATES AT 7 MPH WITHOUT PUSHING THE BRAKE PEDAL. WHEN PEDAL IS ...
A: Does the ABS light come on? If so I would advice having the ABS system scanned for codes. If not I ...
|
| 2002 yukonxl 4wheel drive | 12/13/2007 |
Q: I've got a vibration problem, GM replaced drive shaft and universals, ring and pinion - still have ...
A: Has the tires and wheels been checked? The BEST way to pinpoint a vibration at this point would be ...
|
| 2000 GMC Sonoma 4 cyl 2 wd | 12/13/2007 |
Q: I unfortunately listened to the wrong people and tried towing my truck in neutral from florida to ...
A: Ric I am in the process of doing my SECOND truck like this in 3 weeks. Identical, 2000 model, 2.2 ...
|
| 2000 GMC Safari Heater trouble | 12/13/2007 |
Q: Good night, I have a 2000 GMC Safari (4,3 Vortec). This morning, the front heater never started ...
A: Assuming I am correctly reading this, the Blower is inoperative? Not the heater, but the blower. IF ...
|
| 2000 GMC SIERRA 1500 6 CYLINDER | 12/12/2007 |
Q: BRAKE FAILURE AT ONLY SPEEDS OF 5 TO 6 MPH. ABS LIGHT CAME ON FIRST TIME IT HAPPENED, DROVE IT THE ...
A: Do you hear any hissing noises? If so I would suspect the booster internally failing at high vacuum. ...
|
| 2003 gmc yukon locks | 12/12/2007 |
Q: my rear window and door locks are not working but my front door locks work.
A: I have run into this NUMEROUS times. MOST times it is the left inside fuse block at fault. The lock ...
|
| 2001 Yukon heater control | 12/12/2007 |
Q: 2001 GMC Yukon FWD 5.3L. The Heater control will not redirect air flow to floor or defroster, ...
A: sounds like the Mode Door Actuator is your POSSIBLE fault. When they fail they do this same ...
|
| engine problems | 12/11/2007 |
Q: I have a 2000 GMC Safari 6cyl. My "Check Engine Soon" light came on and it's starting to run ...
A: I would get the code read, you can do this at Autozone, and alot of other parts stores and auto ...
|
| 2001 Olds Aurora V8 CKP sensor | 12/10/2007 |
Q: My scanner gives me a code P0386 which is either a upper or lower sensor. How can you determine ...
A: P0386 is for CKP sensor B. Both sensor are located, as you say next to each other behind oil filter ...
|
| 2001 GMC JIMMY Intake manifold | 12/10/2007 |
Q: Good evening, Thank you for your participation in this forum.In August,2007 you gave an answer to a ...
A: here is the EXACT procedure from GM Service. Important: Rotate the number 1 cylinder to top dead ...
|
| 1999 GMC Electrical | 12/9/2007 |
Q: 1999 4X4 350 Automatic GMC Suburban. I can drive down the road and all of a sudden my dashlights, ...
A: Sounds like a ground problem. I would check the battery ground, and every other body ground you can ...
|
| GMC 2002 ENVOY | 12/8/2007 |
Q: Around two days ago, my wife's car had a light pop up stating that the engine needs to be serviced ...
A: Depending on the code stored, it MAY need a PCM. There is a bulletin out for a CERTIAN code setting ...
|
| GMC Safari ignition switch | 12/7/2007 |
Q: How do you replace ignition switch on a 1998 GMC safari van. Could it cause the fuel pump to stop ...
A: I have learned ANYTHING is possible from an ignition switch. ******FIRST disable the air bag ...
|
| replace driver's seat 2001 Malibu | 12/6/2007 |
Q: Can I replace the seat? My wife in not interested in a swap with the passenger seat. Thanks
A: You could replace either the whole seat assembly with one from a slavage yard, or from the ...
|
| How Do I Remove Door Panel | 12/5/2007 |
Q: 2004 Yukon SLT, 5.3 V8. I need to replace the drivers side and the passenger side window switches. ...
A: PULL UP on the panel..UP not out but UP..... Here is the procedure from GM SI, same for both sides. ...
|
| 1999GMCSubruban K2500 Exhaust | 12/5/2007 |
Q: Suburban is 1999 K2500 Suburban with 7.4Litre engine 4WD, AC,PS,PB,AC, with 108K miles. The fuel ...
A: Do you know what the codes are?? P0420 and or p0430? Those are Low effiency codes. Please let me ...
|
| code P0650 | 12/4/2007 |
Q: I installed a Pioneer Nav UNit in my 2006 Chev Silverado 2500HD Crew Cab Duramax Pickup. Since then ...
A: It sounds like it is a wiring issue. Maybe your adapter is at fault. I would double check all ...
|
| 1999 GMC Sonoma trouble | 12/4/2007 |
Q: I have a 1999 GMC Sonoma with the 4cyl., 2.2L engine. The motor is currently misfiring. I recently ...
A: The p0200 will create the p0300. One of the injecotrs OR related wiring to the injector is faulty. ...
|
| 2003 yukonxl 2500 6.0l | 12/3/2007 |
Q: Left hand door electrical problems. left door lock not working,left mirror not working, lights for ...
A: I would check the DDM fuse located in the left side panel. If fuse good, I would HIGHLY suspect the ...
|
| 2001 GMC Sierra 2500HD Diesel 6.6 Duramax Turbo | 12/2/2007 |
Q: My ABS light has come on and after turning ignition off there seems to be a fan or pump still in ...
A: It's the ABS EBCM (Electronic Brake Control Module). It has an internal relay that has tuck on, ...
|
| 2000 Tahoe Limited Door Locks | 12/2/2007 |
Q: I have a 2000 tahoe limited with 5.7 vortec and my power locks are not working could you please help ...
A: Here is the EXACT service info from GM. Please be adviced it is VERY detailed and you'll need a ...
|
| engine won't start and vehicle shakes | 12/2/2007 |
Q: I have a 2003 GMC Yukon XL, 70000 miles with constant problems. When we first got it the battery ...
A: The A/C noise is the Compressor. It is a VERY common problem. It is caused by Low pressure liquid ...
|
| PCV VALVE REPLACEMENT | 11/30/2007 |
Q: CajunSC, I want to replace the PCV valve of my 2000 GMC Jimmy 4.3liter engine. Whe i try to pull ...
A: It is very possible you MAY break the grommet. I have seen them break in the past. Try dabbing ...
|
| denali transmission problem | 11/30/2007 |
Q: I own a 2002 GMC YUKON DENALI XL. I BOUGHT IT BRAND NEW. IT HAS ONLY 36,000 ON IT. I 'M NOW ON MY ...
A: does the bulider say whats failing? Is it the same part(s) failing everytime? When it fails, does it ...
|
| Fan Air Direction | 11/29/2007 |
Q: First of all thanks for taking the time to answer my question. I have a 1998 Buick LeSabre Limited. ...
A: when there is a vaccuum leak, the HVAC system defaults to the defroster mode. I would HIGHLY suspect ...
|
| key replacement | 11/29/2007 |
Q: We bought a 2000 Yukon, used, and only got one set of keys. We have tried (twice)to buy a second ...
A: if possible, the alarm, what does it sound like? Just the horn blowing? Or is it an aftermarket ...
|
| 2001 GMC Yukon | 11/28/2007 |
Q: I'm having problems with the tow hitch electrical connection. My trailer lights worked once, and now ...
A: In the underhood fuse box, there is a TRL L fuse. I would suspect that as being blown. The ONLY ...
|
| Day Time Running Lights | 11/27/2007 |
Q: My 1999 GMC Sonoma has daytime running lights and they are not on when the truck is in drive like ...
A: The DRL's do not have an on/off switch. If the headlamp switch is in the OFF or AUTO position they ...
|
| 2003 GMC Envoy | 11/26/2007 |
Q: I started to smell this hot electric smell in my 2003 GMC Envoy. In addition to that my driver side ...
A: I have run into this numerous times, it is the Drivers door module has internally melted down. ...
|
| 99 GMC Savanna Conversion Van | 11/25/2007 |
Q: After driving my van home last night, from a family gather, starting it cold there was no problem. ...
A: If you do not hear the fuel pump, I would see if the relay underhood clicks while cranking. If so ...
|
| aux battery not charging | 11/25/2007 |
Q: i have 00 gmc 4x4 ex-cab 6.0L. the aux battery doesn't charge. the main battery is charging fine. ...
A: From the generator, the charging system for the Aux. Battery goes THROUGH the starter, through a ...
|
| GMC Fan Belt Diagram | 11/24/2007 |
Q: I understand that you will REJECT any questions for models older than 98. I am hoping that you could ...
A: I actually do not reject them, I send them to the question pool for ALL to read and help answer. I ...
|
| Opel Corsa 1.4i utility- year 2000 | 11/23/2007 |
Q: Will a faulty knock sensor located on the crank pulley cause the coil not to fire, ie no spark on ...
A: I do not have access to GM Opel service manuals. That being said, if it is a KNOCK SENSOR (KS), no ...
|
| Headlight replacement 2005 Jimmy | 11/20/2007 |
Q: How do I remove the light assembly to replace a burnt out headlight? I have removed two screws at ...
A: Here is the EXACT procedure from GM SI. Ensure that the headlamp switch is in the OFF position. ...
|
| Heated seat failure on 01 Buick LeSabre | 11/20/2007 |
Q: Have 2001 Buick LeSabre. Drivers heated seat doesn't heat. Accessory fuses are fine. No loose, ...
A: No the diagnostics is NOT the same. Here is the procedure. It is VERY long and fairly technical. ...
|
| Program entry key fob | 11/15/2007 |
Q: 1999 GMC Suburban - how do I program key fob? ANSWER: Hi Here is EXACT procedure from GM SI. If ...
A: The shape of the plug is a rectangle with one flat longer than the other. The SHORT flat also has ...
|
| Program entry key fob | 11/14/2007 |
Q: 1999 GMC Suburban - how do I program key fob?
A: Here is EXACT procedure from GM SI. If they key is in the ON position during the programming ...
|
| My heater is on the fritz!! Help! | 11/14/2007 |
Q: Okay, I own a 1995, 2.2 liter chevy cavalier. She's a standard and recently is have weird sounds ...
A: Really sounds lik the fan blower motor. It is located under the passenger side, below the glove box. ...
|
| 2003 GMC surburban 1500 not starting | 11/13/2007 |
Q: Started with heated seats not working. Last night Check fuse (IGN 3) no problem. Started up fine ...
A: Sounds like you MAY have an electrical draw, drawing down the battery. It is VERY possible in the ...
|
| Dome lights won't come on in 1999 GMC Jimmy | 11/13/2007 |
Q: I have a GMC 1999 2 door SLS Blazer, 2 Wheel drive. mysteriously my dome lights, glove compartment, ...
A: If the CTSY LP fuse is good, make sure it is getting hot with a test light. If so the circuits go ...
|
| 99 gmc suburban heated seats | 11/12/2007 |
Q: Have 99 gmc suburban. Heated seats wont work. fuses are fine. What else/where else should i be ...
A: Here is diagnostics.... I have no way of sending schematics, but you can click the private box, and ...
|
| 99 gmc suburban heated seats | 11/11/2007 |
Q: Have 99 gmc suburban. Heated seats wont work. fuses are fine. What else/where else should i be ...
A: It's a pretty long diagnostic procedure for inop front heated seats. If you'd like the diagnostic ...
|
| defroster | 11/11/2007 |
Q: 1999 GMC suburban--- defroster inop. ANSWER: front or rear???? If front, do the other blower ...
A: MOST likely it is the Mode door actuator, located on the drivers side, above throttle pedal area. If ...
|
| No injector pulse | 11/10/2007 |
Q: 1998 Yukon 5.7, no injector pulse. Power to injectors, pulsed - OK, good spark, good fuel pressure, ...
A: I would check the security system first. Make sure you do not have any codes in the BCM or the VTD ...
|
| 1998 GMC Sonoma 4-cylinder Manual won't start in cold weather | 11/7/2007 |
Q: Every winter when the temperature gets below 20 degrees fahrenheit my truck will not start, it will ...
A: I would get the fuel pressure checked.... It NEVER hurts. I would then have the PCM scanned for ...
|
| Guages | 11/7/2007 |
Q: I have a 2001 gmc Yukon 3/4 ton xl with a 6.0 gas motor. I can be going down the road and the gauges ...
A: Chanced are you have an internal cluster fault. Replacement of cluster is ALL I know to do.Some ...
|
| power steering | 11/6/2007 |
Q: Previously I had Petrol with Power steering engine car recently I have purchased Diesel engine car ...
A: In general there should be no difference. ALOT af variables can effect power steering preformance. ...
|
| p0101, p0300 codes GMC savanna | 11/6/2007 |
Q: I have a 2004 GMC savanna full size extended van with a 6.0 liter v-8 engine with mileage at 56,000. ...
A: Lets get back to basics and original post. A Misfire CAN be caused by Fuel system Ignition system ...
|
| rear locker or limited slip | 11/6/2007 |
Q: i have a 2000 gmc 1500 5.3 4L80e and 3.73 gears. The rear is a 8.5 that is stamped on the inside. ...
A: I'll first say, if your wanting to go back totally stock,. itis possible... That being said, if your ...
|
| 99 buick century rear brake lights and turn signals not working | 11/2/2007 |
Q: I have a 99 Buick Century Custom with a 3.1 liter engine. I replaced the bulbs and this didn't fix ...
A: I would STRONGLY suspect the multifunction switch, located on the stweering column. Since the CHMSL ...
|
| electrical problems | 11/1/2007 |
Q: I own a 2000 GMC Sierra 1500 with a 4.3 L V6 basic half ton truck. My problem is that if I park my ...
A: I would HIGHLY suspect the Coil wire. I have run into the NUMEROUS times. Quick fix would be to ...
|
| 1998 GMC Sierra 1500 1/2 ton | 10/31/2007 |
Q: My 1998 GMC Truck 1500 Fuse number 3 (courtesy) is not working right. When i put it in the door ...
A: It sounds like a light is either still on somewheres, or the headlamp switch MAY be at fault, OR you ...
|
| Reprogram auto door locks 99 GMC Yukon | 10/30/2007 |
Q: I just purchased a 99 GMC Yukon LS with 70K mi 5.7L engine, old body style. I received only one key ...
A: I've got to attemp to find an Owners Manual for this vehicle. I could not find anything in GM ...
|
| electrical | 10/30/2007 |
Q: 99 olds lss 3.8- When I turn on the rear defroster it kills the engine, driver side power seat, ...
A: The bus bar is the under hood fuse box. I would check battery voltage AND alternator output with the ...
|
| buzzing noise at under 10 mph from start up | 10/30/2007 |
Q: i just got a 2004 silverado 2500hd 4x4 6l. vortex, my wife notice a litte buzzing noise when start ...
A: I would HIGHLY suspect the exhaust system, in particular the "clamps" or "Straps" that hold the heat ...
|
| 98 GMC will not start | 10/29/2007 |
Q: I have a 98 GMC 5.7 that will not start. This is the third time this has happened. the first two ...
A: First starting fuid is not a good idea. It can explode and cause catostrophic damage. I would get ...
|
| transfer case? | 10/28/2007 |
Q: i have a 1999 gmc sierra 1500 5.3L, 4-whl drive,z71.i don't use the 4-whl drive.it has 123,000 ...
A: As far as the clunk/jerking, I would, WITHOUT actually seeing and feeling vehicle, tell you that ...
|
| 2001 GMC Yukon | 10/27/2007 |
Q: Can't turn the ignition, but steering wheel turns. I saw your answer to a similar question ...
A: If your going to have it towed somewhers, I would tow it to the dealership OR to a good reputable ...
|
| 2002 tracker | 10/27/2007 |
Q: I own a 2002 Chevy Tracker. Recently, the service engine soon light came on. I had a diagnostic ...
A: OBD2 engine systems CANNOT have the service engine soon light by disconnecting the battery. They ...
|
| power locks | 10/27/2007 |
Q: The front driver and passenger power door locks on my 2000 Yukon Denali 5.7L only move about half ...
A: It is MOST likely the Actuators for the misoperating doors. This is how these particular actuators ...
|
| 2001 GMC Sierra SLT Z71 | 10/26/2007 |
Q: The power seat on the driver side is not working. The Power lumbar control adjacent to the controls ...
A: The seat is PROBABALLY the adjuster assy, as the motors are not replaceable, well their not avalible ...
|
| water drainage | 10/26/2007 |
Q: I have a 2006 sierra crew cab. No problems in a year and a half until the last couple of months. It ...
A: Have you been using your A/C? It COULD be A/C drain off not draining properly. The drain MAY be ...
|
| 2001 Yukon XL Dash Gauge Issues | 10/25/2007 |
Q: Recently when the Yukon has been sitting overnight the fuel, RPM, speedometer gauges along with the ...
A: It REALLY sounds like you may have an internal cluster problem. I would, though, recommend taking it ...
|
| 2005 GMC Envoy Antifreeze smell | 10/25/2007 |
Q: I have been experiencing a slight smell of antifreeze while driving. Thinking Heater Core. I ...
A: I would recommend having the cooling system pressure tested. Have the leak identified FOR SURE, ...
|
| Rt Turn signals ano working | 10/24/2007 |
Q: The blinker on the inside is flashing like it should(not fast). I do have a after market plug i that ...
A: Check the large 4 way junction block, under the left side rear, where the 4 wire harnesses meet. ...
|
| turn signal | 10/23/2007 |
Q: ..I own a chevy cavalier. Recently the turn signals are intermittent. I put either the left or right ...
A: Not knowing the year kinda puts me at a disadvantage, but I would check ALL bulbs, front and rear. ...
|
| 2000 gmc jimmy no power when cold | 10/23/2007 |
Q: I have a vortec 4.3. when cold, car has no power for about the first 15 seconds of trying to drive. ...
A: If it feels like it is not getting fuel, I would install a fuel pressure gauge onto the fuel system ...
|
| 2000 GMC Yukon XL | 10/23/2007 |
Q: My Yukon XL's passenger side AC vents are blowing hot air.
A: Sounds like the Passanger side tempeture door actuator is faulty. You CAN take it to a good repair ...
|
| 99 Gmc Jimmy SLT 4.3 V6 - Instrument Panel Lights & Crank, No Start | 10/22/2007 |
Q: I also have a 1999 Gmc Jimmy SLT with a weird indicator light/no start condition, very similar to ...
A: I would check the Alternator output with a meter. SHOULD be 13-15vdc output. Thats first. I would ...
|
| heater core replacement | 10/22/2007 |
Q: How hard is a replacement on 98 Gmc sierra?I have to replace the water pump and the heater core ...
A: It's easy for me..... but I've done 60 or so of them. The bottom panel needs to be taken off. There ...
|
| replacing speakers or adding speakers 2001 gmc jimmy | 10/21/2007 |
Q: How do you replace speakers in front door panel and rear panel in 2-door model. We managed to hook ...
A: Here is procedure Remove the upper and lower front seat anchor bolts. Remove the rear seat belt ...
|
| replacing speakers or adding speakers 2001 gmc jimmy | 10/20/2007 |
Q: How do you replace speakers in front door panel and rear panel in 2-door model. We managed to hook ...
A: Here is EXACT procedure for removing door panel... You'll need a specialty tool, a Trim Pad and ...
|
| water pump replacement | 10/20/2007 |
Q: 1994 gmc 6.5 turbo k2500 when i took off my water pump for replacement. i discover that there wasn't ...
A: Yes special sealant Here is the number and procedure..... Apply anaerobic sealer GM P/N 1052357, ...
|
| starting | 10/19/2007 |
Q: on a 2003 chevy malibu with a 3.1 automatic tranny. i bought it for cheap because the fool broke the ...
A: Both need to be done. I would put the interlock in first, mount your ignition switch, then the ...
|
| best way(if any) to unbend a tailgate | 10/19/2007 |
Q: i have a 1996 GMC sierra 2500 regular cab with the 8 foot bed. it used to be a work truck so the ...
A: If the rods inside the gate are NOT bent You can attempt to bend them to suit your particular ...
|
| fuel sender | 10/18/2007 |
Q: I have a 2000 chevy silverado 2500 series 4wd pickup that has has become hard starting over the past ...
A: Yes sounds like it. I would check with the repair shop, and see if it is still under warranty. It ...
|
| 98 Lesabre Limited Blower Motor Not Working | 10/18/2007 |
Q: Back on April 1st of this year you diagnosed a similar problem for someone. The problem is the ...
A: The blower motor resistor connector C1 terminal B and ground should be 12v. Between C1 term. B and C ...
|
| Replacing Stereo speakers | 10/17/2007 |
Q: I've managed to replace the deck but I can't quite figure out how to pull off the door panels to get ...
A: remove 2 screws (one is behind the door lock slide). other is below the pull handle. remove the ...
|
| 2004 Yukon body computer issues? | 10/16/2007 |
Q: Driver's side (only) ventilation on my 2004 Yukon XL Denali with 70K miles shifts over to very hot ...
A: I think you have 2 seperate issues. 1) The fuel level is PROBABALLY the Fuel level sensor, located ...
|
| Denali High Idle | 10/16/2007 |
Q: I have a 2002 Yukon Denali that idles high when the air conditioning is initially turned on. After ...
A: I would recommend taking it to EITHER your local GM dealership OR to a shop that has reprogramming ...
|
| drivers window | 10/15/2007 |
Q: can you advise what is commonly at fault if my 98 tahoe drivers window stopped working and i changed ...
A: If the fuse AND circuit breaker are good, I would check for power getting to the motor. This will ...
|
| starting problem | 10/14/2007 |
Q: I have a 2000 Chevy C3500 dually. It has a 7.4 with an auto trans. (4L80E) Over the last few months ...
A: I would look at the fuel pressure regulator. Make sure there is NO fuel in the vacuum side of the ...
|
| air conditioner | 10/13/2007 |
Q: on a 2005 malibu classic im having trouble with the ac. while your driving it will be blowing good ...
A: I would first take it and have the refrigerant charge checked FIRST. Most shops offer a free or ...
|
| 98 GMC backfire/misfire 5.7 | 10/12/2007 |
Q: I'm somewhat mech inclined. I have a 5.7L GMC K1500 and at low speeds it backfire's. I'm thinking it ...
A: I would recommend a major tune up )Plugs, wires, cap, rotor, fuel filter, air filter, throttle body ...
|
| Oil pressure | 10/11/2007 |
Q: have a GMC Vandura 2500. 350 5.7 Liter. I have noticed that the oil pressure is around 20. It is ...
A: It is VERY difficult to diagnose noises not having vehicle here. I would tell you to go with your ...
|
| Oil pressure | 10/10/2007 |
Q: have a GMC Vandura 2500. 350 5.7 Liter. I have noticed that the oil pressure is around 20. It is ...
A: not knowing the exac year, it is VERY likely either the gage or the wiring from sending unit to the ...
|
| GMC 98 Jimmy SLT 4.3 electrical | 10/10/2007 |
Q: My Jimmy has a problem with the headlights coming on after the vehical has been turned off and the ...
A: I would have to say, with key off and OUT of ignition and lights STILL illuminate, would MOST ...
|
| p0101, p0300 codes GMC savanna | 10/10/2007 |
Q: I have a 2004 GMC savanna full size extended van with a 6.0 liter v-8 engine with mileage at 56,000. ...
A: It REALLY sounds like you MAY possabally have a bad injector on the #4 cylinder. The p0304 would ...
|
| Crankshaft Position Sensors | 10/9/2007 |
Q: I have a 2001 Oldsmobile Aurora with the 4.0 V8. I need to replace both of my Crankshaft Position ...
A: here is the exact procedure from GM service Raise and support the vehicle. Remove the oil filter ...
|
| 1996 gmc yukon | 10/9/2007 |
Q: how do i replace drivers side head light...Do I take off the grill to replace whole unit?
A: No the whple grille does not need to be removed. Remove the 2 long screws from the top of the ...
|
| no heat | 10/8/2007 |
Q: I recently purchased a 97 gmc sierra k3500 w/ a 6.5 L turbo-diesel. After a few days running it in ...
A: I would check the basics first, proper coolant level, etc... There is a possibality the 'stat(s) ...
|
| 98 tahoe 5.7l | 10/6/2007 |
Q: simple question, when key is on, engine is off i do not hear fuel pump.......but for the last few ...
A: It COULD be the relay, but they REALLY rarely are at fault. You can under hood, take off the fuse ...
|
| brakes | 10/6/2007 |
Q: I have 1999 yukon my rear brakes are locking up all the brakes have been replaces all brakes ...
A: Have them check the proportioning valve. Check the rubber line from steel line to break off block ...
|
| ABS relay | 10/5/2007 |
Q: I have a 2001 gmc jimmy and need to locate the ABS relay. I believe it is under the dash, am I ...
A: After searching the entire service manual, I have come up with the ABS relay is PART of the EBCM ...
|
| 1999 Sananna van 5.7 vortex | 10/4/2007 |
Q: Van will only start with a shot of stating fluid. Did a complete tune up minus fuel filter. Runs ...
A: REALLY sounds like fuel pump issue. You should have the pressure checked (60-66 psi NO MORE NO LESS) ...
|
| 2000 GMC Jimmy power seat failure | 10/4/2007 |
Q: I have a 2000 GMC Jimmy SLE the driver's side power seat quit working, I've tested the switch and it ...
A: If your getting power on the orange wire at the switch, the circuit breaker is good. If the switch ...
|
| 97 Chevy Cav removing wheel studs | 10/4/2007 |
Q: Working on a wifes Cavalier. The mechanic did not tighten the lugnuts after repairs. Wife ...
A: The PROPER way to do it is to remove the whol;e hub assy (large nut, all brake hdwe, etc...) It CAN ...
|
| 1995 GMC 1/2 ton 4 wheel drive truck brakes | 10/3/2007 |
Q: 1995 GMC 4 wheel drive 350cu,5 speed manual transmission.When I drive my truck for a distance and ...
A: It MAY be the Master cylinder. It MAY also be the proportioning valve. I would check the valve ...
|
| 2000 grand am | 10/3/2007 |
Q: i have a 2000 grand am with a 2.4 motor. like many other people my car sometimes will not start it ...
A: If you've replaced the switch, sensor AND key cylinder, then I would look to the BCM at possible ...
|
| Ukon xl 2002 | 10/2/2007 |
Q: Would you direct me to a web site that can show me step by step on how to fix an electric Window? I ...
A: I'll send you the GM procedure, less pics and hyperlinks. You CAN now get just the regulator, ...
|
| vents | 9/30/2007 |
Q: I have a 1999 gmc safari van with a 4.3 and it is 2 rwd. I have recently replaced the radio in it ...
A: It sounds like you have a vacuum leak. The vacuum line runs from the hvac controller across the ...
|
| 99 GMC Yukon door panel removal | 9/30/2007 |
Q: I need to replace my stereo speakers and can not figure out how to remove the front door panels to ...
A: Disconnect the negative battery cable. Remove the door handle bezel. Remove the window regulator ...
|
| engine problem | 9/28/2007 |
Q: I have GMC 3500 turbo disel 2000Y and few days ago i started to hear strange sound and noise from my ...
A: I would have them first check for air leaks. If it has a high revving sound while driving, I would ...
|
| My Envoy sounds like it is pinging.. | 9/28/2007 |
Q: I have a 2003 Envoy SLT (68,000 miles) and I have noticed that it sounds like it is pinging. I ...
A: If it is pinging while driving, more specifcally under heavy acceleration or load, It is most likely ...
|
| oil pressure | 9/27/2007 |
Q: i have a 97 chevy silverado extended cab with a vortec 350 and a automatic tranmission. the oil ...
A: The gage itself MAY be the problem. The Engine oil pressure sender MAY also be the problem. I would ...
|
| 2001 chevrolet malibu electrical problems | 9/26/2007 |
Q: I have a 2001 Chevrolet Malibu which the gas gauge, temperature gauge, radio, and defroster go out ...
A: I would not suspect a short, I would suspect either an Intermittently open circuit or a bad ground ...
|
| 2001 gmc envoy brake lights | 9/25/2007 |
Q: I have notice that the brake lights does not come on when brake is applied but there is taillights ...
A: I would double check and see if power is getting to the STOPLP fuse. If so check the CHMSL relay ...
|
| 2005 GMC Envoy | 9/24/2007 |
Q: I have a 2005 GMC Envoy and recently it started to have a hum when started and gets a little louder ...
A: If it is coming from the front of the engine it is PROBABALLY either the idler pulley (VERY COMMON) ...
|
| 99 GMC, 4WD, 5.3 L | 9/24/2007 |
Q: The truck has an intermittent problem with the security, batter and low fuel light flashing, the ...
A: I would recommend first taking it to a shop your familiar with that offers a free computer ...
|
| 2002 yukon denali transfer case | 9/23/2007 |
Q: A friend bought this vehicle, but, unbeknown to him, it was in hurricane Katrina.[WET!] What he ...
A: My best advice would be to check with your local GM dealership and see if they'll print you out the ...
|
| load noise when accelerating with a/c on | 9/23/2007 |
Q: I have a 2003 yukon. I get a very load noise and vibration from my compressor belt tensioner when I ...
A: This condition may be caused by liquid slugging of the A/C compressor. This condition may cause an ...
|
| 2003 GMC Sierra | 9/23/2007 |
Q: My Sierra has memory power seats. The drivers seat would go back and then not go forward. Then after ...
A: The switch is an input to the DMSM (Drivers Memory seat module) or sometimes listed as the MSM ...
|
| heater core replacement | 9/22/2007 |
Q: I have A 2000 gmc jimmy with 4.3 engine the heater core is bad what I need to know is how to get to ...
A: It is a HUGE job. If you do not have decent mechanical ability, I would NOT recommend a do it ...
|
| 1998 GMC Suburban | 9/22/2007 |
Q: After repairing the fuel pump on my suburban, I cannot get the fuel pump back into the gas tank? I ...
A: Do you have the tank all the way removed? If not remove it all the way. You'll be able to push the ...
|
| 2001 Chevy Tahoe | 9/21/2007 |
Q: My 01 Tahoe 5.3 v8 auto 4x4 has 164000 miles. It has had all normal rutine maintance from day one. ...
A: There is two things you can do. Reclean the throttle bore with GM Top Engine Cleaner spray. Then ...
|
| GMC Truck Fuel Pump Failure | 9/21/2007 |
Q: I own a 2000 GMC CrewCab 4x4, with 5.7 engine. At the first of this year I started experiencing ...
A: I would put a fuel pressure gage on it and MAKE sure it IS the pump. If you are having multiple Fuel ...
|
| GMC Envoy Geer Release Trouble | 9/20/2007 |
Q: ...I have a 2002 GMC Envoy V6. A couple of months ago my husband replaced my brakes. Everything ...
A: The BTSI is a part of the entire gear shifter assembly. Price range.... I would just be guessing. ...
|
| 1994 gmc 1500 pickup (350 CID) | 9/19/2007 |
Q: when I first start my 1994 GMC and when I cut it off, there is a loud, fast knocking for 25 seconds ...
A: It is the HVAC recirculation door actuator. It is a common item to make noise. It is located on the ...
|
| GMC Envoy Geer Release Trouble | 9/19/2007 |
Q: ...I have a 2002 GMC Envoy V6. A couple of months ago my husband replaced my brakes. Everything ...
A: I really doubt the brakes had anything to do with it. Just a coincedence. Most probabally the fault ...
|
| 2003 GMC Yukon xl 2500 Loss of power and knock off | 9/18/2007 |
Q: I have a 2003 Yukon XL 2500 with 8.1L engine. I experience a loss of power and occassional knock ...
A: I would have fuel pressure tested. Have the shop drive it with pressure gage attached. If pressure ...
|
| front wheel play - '99 4wd suburban | 9/17/2007 |
Q: 7L 138K I've noticed play in the right front wheel. Can move camber about 1/4". This is the wheel ...
A: Being a 4wd, the hub/bearing are one single unit. It will be repalced as one unit. Bearing is not ...
|
| 1997 Yukon | 9/17/2007 |
Q: It started with the passenger window failing to open/close. Now, the power locks will lock but not ...
A: I would remove the door panel and see if the Lock Actuator has not broken or the mounting rivets ...
|
| GMC Safari engine misfire | 9/16/2007 |
Q: I have question about engine misfire at 99 GMC Safari,V6 2WD,4.3L. I got check engine light ...
A: The light blinks because it is Damaging the catalyst (Catalytic Converter). If the mechanic could ...
|
| A/C PRESSURE CHECK AND FILLING | 9/15/2007 |
Q: I HAVE A 2004 GMC 2500HD SIERRA. I HAVE A R-134 REFILL KIT, BUT I CAN'T SEEM TO FIND THE FILL PORT ...
A: The one CLOSER to the firewall is the low side. It is smaller diameter fitting than the high side. ...
|
| fuel pump/gage | 9/15/2007 |
Q: I have noticed when a idle, my gas gage will 'jump', this has been happening for about 4 months. ...
A: It sounds like you MAY have a fuel pump issue. Before spending $$$$$$$$$$$ on the parts, I would ...
|
| GMC Sonoma Fuel pump repair costs | 9/14/2007 |
Q: I just got my 2001 Sonoma 6 cylinder engine fuel pump repaired, he diagnosed it by sticking his ...
A: ALOT of varibles, but if the price you gave me was for the WHOLE job (Parts and labor), I would say ...
|
| 98 Sonoma 4wd blowing ATC fuse | 9/14/2007 |
Q: have a 98 Sonoma 4wd 6 cyl vortec engine with push button 4wd switch. I keep blowing the ATC fuse ...
A: It REALLY depends on which Transfer case you have (RPO code NP1 [2 speed selectable]) or (RPO code ...
|
| Harsh 1 to 2 upshifts | 9/14/2007 |
Q: Could you please sent me the latest program # dealing with intermittent harsh 1 to 2 upshifts in my ...
A: Here is a list of ALL the newest calibrations for your truck 9379910 - Operating systems 9358570 - ...
|
| Yukon headlights too dim | 9/13/2007 |
Q: I have a 1999 GMC Yukon (old body style 5.7L). I bought it new. Lately I have noticed that the low ...
A: The voltage is not changed. Here is the EXACT GM service manual circuit description for the ...
|
| 98 gmc jimmy fuel problem? | 9/12/2007 |
Q: i have a 98 gmc jimmy with a 4.3l today it started to act up, rpm were up and down, it would buck ...
A: I would recommend a tune up, plugs, plug wires, dist, cap, rotor, air filter. If still acting up, I ...
|
| Dome light `door switch | 9/12/2007 |
Q: I have a 2001 GMC 2500 Sierra with a problem with the dome light not coming on with the Passenger ...
A: The switch is actually part of the latch assembly, which is the part in the door. I have replaced a ...
|
| Misfire at Idle | 9/11/2007 |
Q: We own a 1999 Chevrolet Suburban with 193K miles. Over the last month, it has been idling very ...
A: Sounds like you done your homework... From what you are telling me, I would also concur based on the ...
|
| 01 Buick Regal LS | 9/11/2007 |
Q: I have a 2001 Buick Regal LS, 3800 series engine. The transaxle is not shifting properly. when it i ...
A: I would take the vehicle to a repair shop that offers free diagnostic scans. I would get the PCM ...
|
| backup lights | 9/10/2007 |
Q: OK the backup lights in my 2002 GMC sonoma flicker but mostly do not work. I checked the fuses they ...
A: I would check the reverse lamp switch, located in the side of the tranny. It is a small switch with ...
|
| 2001 GMC problems. | 9/9/2007 |
Q: I've had this very strange problem with my 2001 GMC Jimmy 4WD. It has the 4.3L Vortec with the csefi ...
A: The fuel pump is your problem. This system HAS GOT to produce 60-66 psi to pop off the nozzles. The ...
|
| Rear A/C | 9/9/2007 |
Q: The rear A/C to my 2001 GMC Yukon Denali (Vortec 6.0L)has stopped blowing cool air. It only blows ...
A: First Low A/C system freon charge CAN cause this problem. Next- The Rear HVAC controller is ...
|
| 2003 yukon-idle | 9/8/2007 |
Q: 2003 Yukon 5.3. runs great on highway, anytime we stop at stop sign, it wants to die. idles up and ...
A: The throttle bore needs to be cleaned. GM makes a product recommended called "Top Engine Cleaner" ...
|
| 1999 gmc envoy day time lights | 9/8/2007 |
Q: I have a 1999 Gmc envoy and the daytime running lamp on the passenger side has stopped working all ...
A: I have only had 1 dealing with this system and as much as I hate to say, The GM light is the only ...
|
| motor swap | 9/6/2007 |
Q: Is it possible to put a 350 in place of a 305 without changing my intake and computer on the truck? ...
A: If it's a VIN M motor (305) to a VIN R motor (350), they will swap EXCEPT the PCM MAY need to be ...
|
| Harsh 1 to 2 upshift | 9/5/2007 |
Q: I own since new a 1999 Chevy Silverado 1/2 ton SWB 4x4 with a 5.3L V8 and O.D. automatic. Trans is ...
A: Although I am not a great transmission tech, I will assist some I hope! First thing to check, unless ...
|
| Intrument Cluster is not working | 9/5/2007 |
Q: The guages in my instrument cluster in my 2001 Suburban started to flip on and off and several ...
A: It is PROBABALLY the cluster at fault. You could take it to a repair shop and see if there is any ...
|
| Noise when accelerating | 9/5/2007 |
Q: I have a 1998 GMC 3500 series box van. The van has a 350 and an automatic transmission. My ...
A: I wish I could hear the noise. Does the truck actually vibrate? Can you feel a vibration like in ...
|
| 2001 GMC Yukon | 9/4/2007 |
Q: 2001 Yukon 2wd 5.3 engine Last 9 digits in VIN 31J189915 Engine started missing a little bit. ...
A: 2 things to check first is PROBABALLY it. The fuel pressure regulator is PROBABALLY leaking into the ...
|
| 2004 2500 Sierra | 9/4/2007 |
Q: 2 Part issue Issue: Front A/C was pulsing - meaning blowing hard then soft. Action: I pulled the ...
A: Check the harness that runs down between the glove box door frame and the black HVAC case. You can ...
|
| 01 Chevy Express 5.7L V8 | 9/4/2007 |
Q: I need some help finding what I think is a vacuum leak that I probably created while fixing ...
A: I cannot think of anything either that could cause a hissing sound. Spraying carb cleaner is OK, the ...
|
| 99 gmc safari heating/ac controls | 9/3/2007 |
Q: My 99 gmc safari awd temperature control seems to be malfunctioning. Whenever I go uphill or put a ...
A: I would get the Vacuum system checked. The system uses vacuum to control actuators that control ...
|
| 2003 GMC Yukon XL - A/C problem | 9/2/2007 |
Q: The air won't blow out of the vents. It will only blow out of the top of the dashboard from the ...
A: There is 3 different (possible) fixes for this concern on this year vehicle. 1) The HVAC actuator ...
|
| 2004 GMC Envoy | 9/2/2007 |
Q: Trying to remove money from center defrost vent under the front windshield. Need help accessing ...
A: To remove the deflector itself, remove the side windshield trims. then pry up on the Upper Trim Pad ...
|
| 2000 Buick Century Custom 3.1 | 9/2/2007 |
Q: This car was given to me by my daughter. It had the wiring harness eaten by varmints. First, the ...
A: The f/pump spd cont" is for a REGAL only. They probabally use the same harness/fuse block for ...
|
| A/C Cold air "Stopped" 2002 Grand Am GT | 8/31/2007 |
Q: First let me say THANKS for the time you spend helping people. Last week I bought a 2002 Grand Am ...
A: First THANK you for your question and for allowing me to try to help. The request MUST come from the ...
|
| P1415 Code, and A/C Compressor wont turn on | 8/31/2007 |
Q: I have a 2000 GMC Sierra 1500 2WD 3door short bed, 5.3L, 4L60E Trans. its throwing the P1415 Code ...
A: I'll address all three issues. 1) p1415. As much as I'd like to tell you 1 single part is could be, ...
|
| P0449 code on 2000 Yukon | 8/30/2007 |
Q: My 2000 Yukon (new style/4WD/5.3 engine) has had the P0449 code for about 15k miles (currently has ...
A: MOST likely cause is the EVAP vent valve is plugged. You could remove it and take top off. It has a ...
|
| When brakes applied truck dies | 8/29/2007 |
Q: We have a 1994 6.5 diesel. 200,000 miles. When the brakes are applied it dies. It will start a few ...
A: Could you please tell me if any codes are stored? If so what are they? Engine is getting fuel where? ...
|
| window lift motor installation | 8/29/2007 |
Q: Need help installing a window lift motor for a 2003 GMC envoy
A: Remove the accessory switch panel. Remove the 2 trim panel retaining bolts (1 and 2). Use the trim ...
|
| 1999 chevy suburban AIR pump | 8/28/2007 |
Q: where is the secondary air pump located on a 1999 suburban 1500.
A: IF your vehicle is equipped with this, it would be located in the left front underhood. It would ...
|
| replacing brake lines | 8/28/2007 |
Q: I have to replace rusted brake lines on my 1992 Safari Van. The stock brake lines are bent into ...
A: Coils are necessary to act as a "spring", if you will, or shall we say flexability. We could also ...
|
| Overheated engine wont turn over | 8/28/2007 |
Q: I overheated my 1999 GMC Sonoma P/U. Its a 4 cylinder engine. As I turn the ignition to start the ...
A: JUST my opinion and experience, granted I also do not have the vehicle here, but USUALLY they need ...
|
| BLOWN FUSE | 8/27/2007 |
Q: I HAVE A 1999 GMC SUBURBAN THE ENG 1 FUSE UNDER THE HOOD KEEPS BLOWING I PUT A NEW ONE IN AS SOON AS ...
A: That fuse feeds these items 1)Evap Canister Vent 2)Mass Air Flow Sensor 3)Camshaft Position Sensor ...
|
| fuel pump problems | 8/27/2007 |
Q: I have a 1998 Tahoe 5.7L with 135,000 miles. The fuel pump quit working. Fuses look good. Replaced ...
A: Can you hear the pump running key on engine off? If so,you DO NOT have an electrical issue. If not, ...
|
| Cooling fans on 2000 Pontiac Montana | 8/26/2007 |
Q: I purchased a 2000 Pontiac Montana (3.4, auto, pwr everything, cc, etc...) this past December in ...
A: Could you check the private box and send me the last 8 digits of your VIN (Vehicle indentification ...
|
| no lt or rgt brake light, rear turn& hazards | 8/26/2007 |
Q: Checked fuses,relays. Changed stoplight switch & bulbs. Turn signals& hazards only work in front. ...
A: Yes the multi function switch MAY be your problem. Make sure your getting hot on the white wire into ...
|
| Passenger door electronics not working | 8/25/2007 |
Q: I have a 2003 Yukon and went to put the passenger front window down and nothing... then tried all ...
A: If your remotes also stopped working also, the PDM (Passenger door Module) MAY need a reprogram. The ...
|
| timming | 8/25/2007 |
Q: 1998 Gmc Jimmy 4.3 4x4 130,000 automatic I just changed the intake manifold gasket now the vehicle ...
A: Rotor should be lined up with the LITTLE "V" notch located on the Distributor body itself, where the ...
|
| transfer case control mod | 8/24/2007 |
Q: i have a 1999 gmc jimmy 4.3l it has a np8 transfer case with a 4 button 4wd switch when i start it ...
A: Sounds like your on the correct path. I do not have access to Parts, sorry. I can tell you that the ...
|
| 2000 GMC JIMMY | 8/24/2007 |
Q: I have a 2000 GMC Jimmy. My truck will run fine one minute and not the next. I can be driving and ...
A: The fuel pressure is low. 50 is too low for this system. It neede between 60-66 psi, no more no ...
|
| 2003 GMC Yukon 4.8L V8 | 8/23/2007 |
Q: Two things happening..1)When I turn the wheel all the way to the left, I hear one fairly loud click ...
A: The sound IS PROBABALLY the front crossmember. There is/are some factory bulletins that address this ...
|
| Service Light | 8/22/2007 |
Q: 2001 Jimmy SLT 4x4 with trouble code PO410 I have replaced the secondary air pump twice, thermostat ...
A: There is an updated hose to attach to the AIR pump. It actually comes in a kit. Here is the part # ...
|
| GMC Yukon 2004 ignition | 8/22/2007 |
Q: I can not turn my ignition to start my yukon. My steering wheel is not locked. i can turn it ...
A: Most likely it'll need an igintion lock. It is not really a job for a do it yourselfer. I JUST ...
|
| Fuel Gage Moves | 8/21/2007 |
Q: I have a 2001 Chevy 1500 Truck, 350(ish) v8 engine. The gas gage has started to jump back and ...
A: here is a GM bulletin on a similar issue. Fuel gauge may be inaccurate or drops to empty (E) and the ...
|
| 2001 Sonoma A/C quit | 8/21/2007 |
Q: Saturday I was driving the truck and the A/C was blowing very cold (have never had a problem before, ...
A: I would think of a few things to check The low side pressure cycling switch MAY be occasionally ...
|
| Repair Question | 8/21/2007 |
Q: My speedometer lights went out on my 2001 GMC Sierra along with my lights that illuminate my A/C ...
A: You can check the power going to either module (terminal E on the HVAC control module gray wire) or ...
|
| 99 GMC Safari | 8/20/2007 |
Q: Sometimes the instrument cluster in my van does not register. All of the guages go either all the ...
A: I see one common item, G105 (Ground circuit 105) which terminates (or grounds) at the Thermostat ...
|
| gmc savanna 2500 misfires | 8/19/2007 |
Q: gmc savanna 2500 misfires when going up hills on highway. took it to 3 places did complete tune up, ...
A: First what year is van? What engine? What could you get the codes (check engine light) codes for me ...
|
| CP1345 Code | 8/19/2007 |
Q: I'm working on a 2WD 1998 1/2 ton Chevy P/U with A 5.7L V8 and a 4 spd auto. Not being aware that ...
A: On the black plastic intake on REAR facing the firewall AND also on the distributor there is a small ...
|
| 1999 Yukon doesn't always start. | 8/18/2007 |
Q: I have a '99 Yukon that will start sometimes, other times, it will click but not even attempt to ...
A: I would check the battery, battery connectors, terminals, and battery bolts. Make sure all the ...
|
| Rear a/c controls | 8/17/2007 |
Q: Wife just got a 2004 gmc envoy, but the rear hvac controls won't work. (rear air does work with ...
A: There is a VERY long diagnostic workesheet for the vin 6 rear blower inop from rear switch. I will ...
|
| 98 Buick Century - one brake light | 8/17/2007 |
Q: Well, the driver's side brake light doesn't come on when i hit the brakes. I replaced the bulb with ...
A: Check and see if you can get a test light to light up. If not, you can follow that wire back (dark ...
|
| 4.8 misfire under load | 8/17/2007 |
Q: I have a 2000 silverado 1500 with a 4.8,when pulling it will start skipping ,going along at highway ...
A: I would check 2 things at this point. I would check the crankshaft position reluctor ring mounted on ...
|
| ticking sound not knocking | 8/16/2007 |
Q: Last week it broke down something with my distriubutor so it got fixed.Then it came back on like a ...
A: Yes it is possible to be a cracked plug or a broke/cracked wire or wire boot. If it does it all the ...
|
| Rear a/c controls | 8/16/2007 |
Q: Wife just got a 2004 gmc envoy, but the rear hvac controls won't work. (rear air does work with ...
A: One last set of questions Could you give me the 7th (seventh) digit on your VIN Will be either a 3 ...
|
| GMC fog lamps | 8/15/2007 |
Q: I have a 2000 gmc yukon xl 4x4, my fog lamps will not turn on. The orange small light inside the cab ...
A: Of course the fog lamps ONLY work with the headlamp switch ON, I am sure you tried this, correct? If ...
|
| 1999 & 2000 Chevy trucks | 8/14/2007 |
Q: Fuel pumps went out within a couple of weeks of each other. Replaced with aftermarket and fuel ...
A: I would double check pressure again while cranking. If they are old body 5.7L pressure should be ...
|
| 2003 headlamps both out same time | 8/14/2007 |
Q: I have a 2003 Gmc Envoy. Both low beam headlights went out at he same time. I checked the fuses ...
A: With an assistant. have them turn on the low beams and you have hand on the HDM relay under the ...
|
| 98 g1500 no start | 8/14/2007 |
Q: I have a 98 chevy g1500 with a 5.7L which was towed in with a no start condition. I confirmed that ...
A: I am sure you checked the ECM1 fuse? If there is no ICM signal on ckt.423 (white) did you check the ...
|
| 1986 gmc 6.2 lit transmission | 8/13/2007 |
Q: I have a 1986 GMC 6.2 lit 1/2 ton truck, I have gone through 4 trasmissions in the last 5 years, now ...
A: Check with your local trans shop, see if they can help. Check around. I would even maybe find out ...
|
| Passenger Electrical Problem | 8/13/2007 |
Q: I have an 04 GMC Sierra 2500. When the passenger door is open the door locks are inoperable - only ...
A: I'm going to do a bit more checking on this problem. I looked through the owners manual AND the ...
|
| AC Blower/Fan Problem | 8/12/2007 |
Q: I have a 2006 GMC Sierra 3500 WT standard package. The fan speed switch for the AC works when it is ...
A: It sounds like the Blower resistor AND blower resistor harness pigtail connector. Here are the part ...
|
| Safari runs 1-2 seconds then stalls | 8/12/2007 |
Q: I have a 99 GMC Safari van, 4.3 litre engine. Sometime in order to get it to start I have to put the ...
A: I would get the fuel pressure checked. These engines need 60-66 PSI to start. If not they WILL not ...
|
| 2003 envoy heater core replacement | 8/12/2007 |
Q: how hard of a job is it to replace the heater core on 2003 GMC Envoy has all the bells and chimes ?
A: It is a VERY large job, the ENTIRE dash/ IP carrier/ IP assy HAS to be removed. I JUST did an A/C ...
|
| door panel removal 03 sierra | 7/30/2007 |
Q: Trying to replace my mirrors. Need to remove door panel to get to harness. Can you help?
A: here is procedure, from GM Remove the door handle bezel. (Insert a flat-bladed tool between the door ...
|
| Headlight Switch | 7/30/2007 |
Q: How do I remove a headlight switch from a 1997 Chevy Lumina? I believe it is not working properly. I ...
A: Here is the procedure for removing headlamp switch... Remove the steering column opening filler ...
|
| 01 Chevy Express 3500 5.7L V8 | 7/29/2007 |
Q: I was hoping you might be able to help me out as this model is similar to the GMC Savana Van. I ...
A: The balancer and pulley are one assembly. If there is any problem with one, both will need to be ...
|
| Spare Tire Will Not Release | 7/29/2007 |
Q: Own a 2001 GMC Yukon and the spare will not release. My father is a shade tree mechanic and wants to ...
A: As long as ya'll have the proper tool in the hoist, I would turn it and see if someone could get ...
|
| check engine light | 7/29/2007 |
Q: 99 gmc check engine light is on after smog test
A: what kind of GMC?? If it is gas truck with GenII v-8 it could be any of these things DTC P0101 Mass ...
|
| Knock Sensor | 7/28/2007 |
Q: I have a 2001 GMC Yukon, I just got it back from the shop(tune-up,100K) and they advised replacing ...
A: Why are they suggesting the replacement of a Knock sensor? Is the Check Engine light on? If the ...
|
| electronic door locks | 7/28/2007 |
Q: 2000 regal lse - electronic locks will not LOCK either with door switch or remote. They will UNLOCK ...
A: Everything is controlled by the BCM (Body Control Module)that has to do with Door Locks. There is ...
|
| 2000 gmc 5.3 hard starting problem | 7/28/2007 |
Q: My problem is similar to another post. I replaced the regulator, fuel pump and filter with all AC ...
A: The dropping to -0- fast is what I see may be the problem. Isolate the problem by pinching off the ...
|
| '98 Tahoe Electrical issue (5.7 V-8) | 7/26/2007 |
Q: Looking back, all of these things might or might not be related. The first problem started three ...
A: Has or did the fuel gauge still jump? I think the radio is at fault. I have run into the factory ...
|
| engine codes i cant fix | 7/26/2007 |
Q: i have a 02 chev silverado with 5.3. i keep getting codes po131, po151, and po157. i have replaced ...
A: The aftermarket exhaust COULD be your problem. I would first, however check ALL welds and joints, ...
|
| Fuel pump relay | 7/26/2007 |
Q: I'm having a hard time locating the fuel pump relay on a 1992 GMC Safari.My wife was driving when ...
A: The pic I have is REALLY fuzzy, they do not give a clear indication. It REALLY looks like is it on ...
|
| 2001 Yukon AC Delco Heater Control | 7/25/2007 |
Q: I have a 2001 GMC Yukon. The front air control switch only operates in the 3, 4 and 5 position. Does ...
A: No I really do not believe the Control head is your problem. I really think the Blower resistor is ...
|
| 1994 GMC Suburban | 7/25/2007 |
Q: My hood latch does not work. The cable has come loose from under the dash. How do I reconect it?
A: The cable has a small "ball" that fits into a slot on the pull handle. Assuming the handle is NOT ...
|
| interior door panel rattling | 7/24/2007 |
Q: my wife and i just purchased a 2003 yukon xl with 70k on it. Great running well taken care of auto, ...
A: Congrats on the purchase. I have seen no "common" problem with door panels EXCEPT the small ...
|
| 2002 gmc evnoy pcm1 fuse | 7/24/2007 |
Q: every time when trying to turn key into run position the pcm1 15amp fuse blows i have changed the ...
A: It is eithe one of the ignition coild or one of the injectors. That is ALL that fuse feeds. It COULD ...
|
| fan control | 7/23/2007 |
Q: 2001 Yukon XL VORTEC 8100 V8. Fan control level 1 & level 2 have stopped working. The fan works ...
A: The blower resistor located right next to the blower fan. It has 6 or 7 wire input and 2 wire output ...
|
| BCM | 7/23/2007 |
Q: I own a 2001 Chevrolet Monte Carlo SS.3.8ltr Recently I have been having many issues related to the ...
A: Unless you have a Scan tool with GM TIS2k programming abilities, you'll need to have the BCM ...
|
| 2002 GMC Envoy Headlights | 7/22/2007 |
Q: My headlights turn off every so often. No rhyme or reason and then they just come back on. Any ...
A: I would suspect either a loose connection or terminal on either the headlight switch, or at a ...
|
| Air stuck on defrost of 2004 Sierra 2500 HD | 7/22/2007 |
Q: I have a 2004 GMC Sierra 2500HD with a 6.0 engine. I unhooked the battery to put a new starter in ...
A: Try this actuator recalibration procedure...... Remove the HVAC/ECAS fuse for a minimum of 10 ...
|
| power steering and brakes | 7/22/2007 |
Q: both my power steering and power brakes have stoped working simoltainously. There is no fluid leak. ...
A: I would guess you have HydroBoost.. which is why the steering and brakes went out. ( HydroBoost = ...
|
| 95 suburban tdiesel no start HELP | 7/21/2007 |
Q: 95 suburban K1500 Turbo diesel 95k miles. Died the other day, towed it home, it started up and ran ...
A: while cranking under drivers side along frame (where a gasoline truch fuel filter is mounted) is the ...
|
| temperature control | 7/21/2007 |
Q: I have a 2004 GMC Yukon XL Denali. In the front seats there are separate controls to control the ...
A: It is a common issue with that HVAC system. The best thing to do is take it to the dealership OR a ...
|
| th 400 transmission | 7/20/2007 |
Q: I have a 1989 chev k 1500 305 engine turbo 400 trans It,s having a hard time going into reverse,a ...
A: Assuming you have good fluid and good fluid pressure, here is a list of items it could be: Input ...
|
| 2004 Yukon XL AC | 7/20/2007 |
Q: Just changed the battery and the AC is only blowing cold on the passenger side. Did the mechanic do ...
A: No. It is a common issue with that HVAC system. The best thing to do is take it to the dealership OR ...
|
| DIC Displays "Battery Not Charging" Intermintently | 7/19/2007 |
Q: I have a 2003 Yukon LT 2WD, 5.3L Flex, Lately I have been experiencing an intermittent DIC display ...
A: I would check for DTC's in the PCM. If none, here is the criteria for turning on the BATTERY NOT ...
|
| ENG-I 20A Fuse keeps blowing | 7/19/2007 |
Q: I have a 1998 Ext. Cab Chevy K1500 4X4 5.7 Vortec. My problem is that the fuse ENG-I keeps blowing. ...
A: I can tell you the items that fuse feeds, and you can locate short. PAY special attention to ANY ...
|
| air conditioning problem with 2002 GMC Denali XL | 7/19/2007 |
Q: My question is related to one you answered recently regarding an air conditioning problem. I have a ...
A: I checked ALL bulletins and PI's for youe\r vehicle and year before and year after. The ONLY reflash ...
|
| dash/instrument panel lighting doesn't work | 7/18/2007 |
Q: 2002 Chevy Impala LS; 3.8L V6; 76K miles. What would cause the dash/instrument panel lights not to ...
A: If the lights do not come on with the by the light switch, and looking at the schematic, I would ...
|
| 2000 Denali fron ac not cold | 7/18/2007 |
Q: I have a 2000 GMC Yukon Denali 4WD 5.7V8. with 99 body style. Rear AC blows cold. Front AC takes 30 ...
A: It REALLY sounds to me like you do have a low freon issue. I would take it to a good HVAC repair ...
|
| 93 CHEVY FULL SIZE BLAZER | 7/18/2007 |
Q: TRYING TO REMOVE FUEL TANK TOOK 2 BOLTS OFF BUT IT WONT RELEASE WHY?
A: If it is a left side tank, you'll still have the fiiller neck and fuel lines and electrical ...
|
| 96 gmc sierra a/c problem | 7/17/2007 |
Q: I have a 96 Gmc Sierra 4.3 V6. When I turn the a/c on, the blower will only come on when i put it ...
A: Depending on your abaility, I can tell you how to EXACTLY check to pinpoint either the blower ...
|
| 1995 gmc truck a/c problem | 7/17/2007 |
Q: About 2 weeks ago, I was pulling into my driveway and the a/c quit. When it did I heard a slight ...
A: Is the compressor coming on? where did the noise come from....underhood, or under the dash. You say ...
|
| 98 GMC SONOMA SINGLE CAB | 7/17/2007 |
Q: I HAVE THIS SONOMA IT IS A FOUR CYLINDER AND I HAVE PUT THREE FUEL PUMPS IN IT YOU BE DRIVING DOWN ...
A: I would strongly suspect the ground for the fuel pump circuit. I think it is located almost on the ...
|
| Braking Causes Engine Failure | 7/16/2007 |
Q: I have a 97 (sorry is that close enough to 98) GMC Jimmy 2wd. The last 2 or 3 times I applied the ...
A: I see one thing looks like may be common to all your complaints. There is a ground G105, located on ...
|
| 1999 GMC Sierra 1500 5.3L | 7/16/2007 |
Q: I just a fuel pump go bad. I replaced the fuel pump and filter, now I have a hard time getting the ...
A: Yes that could be the problem. Instead of cranking engine, turn key on, engine off. Then after about ...
|
| AC defrost vents only | 7/16/2007 |
Q: 2003 GMC Sierra 2500 HD. Cold air blows from the defrost vents only. Placed in a new controller in ...
A: Two common items I have run into that COULD be your problem First would be the mode door actuator ...
|
| blower motor fuse | 7/15/2007 |
Q: 91 GMC Jimmy V-6 ac/heater blower motor fuses keep blowing 25 amp and tried a 20 amp? Original blwr ...
A: Fuse feeds the selector switch and the selector switch feeds the current to the blower switch. The ...
|
| 1999 GMC Sierra 1500 5.3L | 7/15/2007 |
Q: I just a fuel pump go bad. I replaced the fuel pump and filter, now I have a hard time getting the ...
A: Check the fuel pressure regulator for ANY sign of fuel. If you remove the vacuum line from regulator ...
|
| 1999 gmc does not start when cold. | 7/13/2007 |
Q: my denali doesn't start when it's cold.i have to spray it with starting fluid.i hear fuel ...
A: It really sounds to me like your fuel pump is your fault. If you can start it everytime with some ...
|
| 99 suburban AC issues | 7/13/2007 |
Q: I have a 99 Suburban 1500 5.7l and the ac is fully charged it blows cold air but will not transition ...
A: Sounds like the mode door actuator is your fault. It is located above the gas pedal on the HVAC ...
|
| 1993 gmc jimmy turn signal | 7/12/2007 |
Q: I have a 1993 gmc s15Jimmy the left turn signal flashes very fast in the rear the front does not ...
A: I only see two things then it could be. There is a ground G125 located JUST above the light screwed ...
|
| '03 Yukon XL AC Belt Slipping | 7/12/2007 |
Q: I have a 2003 Yukon XL. The serpentine belt which drives the AC compressor is slipping. I have ...
A: This condition may be caused by liquid slugging of the A/C compressor. This condition is caused by ...
|
| 97 Jimmy | 7/12/2007 |
Q: My gas gage does not work.Is there a few simple things I can try before I get it torn apart by a ...
A: The only thing I can think of is you can try a bottle of GM Fuel System Treatment Plus (P/N 88861011 ...
|
| 1994 6.5 turbo diesel | 7/11/2007 |
Q: I have a 1994 6.5 turbo diesel and while driving down the road at highway speeds 55 to 65 every once ...
A: The ONLY thing it sounds like you have not replaced is the injection pump. USUALLY a code will set ...
|
| 98 gmc sierra 1500 4.3 v6 | 7/11/2007 |
Q: My husband's truck will not start. It spins over but acts like it is not getting fuel. We've had ...
A: I would then suspect wiring from relay to pump. it passes through nothing else. If the relay is ...
|
| 1994 6.5 turbo diesel | 7/10/2007 |
Q: I have a 1994 6.5 turbo diesel and while driving down the road at highway speeds 55 to 65 every once ...
A: Does it do it at throttle, or steady cruise? Is there ANY smoke at all if so what color? Does it ...
|
| 95 olds 88 ac clutch | 7/10/2007 |
Q: as I was searching for ac clutch replacement info on web, I ran across your site. I am curious to ...
A: I can get the info you need, however after you price the clutch, clutch coil and bearing, plus the ...
|
| gas gauge problems | 7/8/2007 |
Q: I have a 2001 gmc Sierra 1500 4X4 5.3L the gas gauge goes from completely full to completely empty ...
A: if it does it while siting and or idle, that is a normal condition as per this Official GM bulletin ...
|
| 1991 GMC Vandura Transmission | 7/8/2007 |
Q: I have a 1991 GMC Vandura 3500 extended cargo van. it has the 350 V8 and I am pretty sure that it ...
A: Not being a great tranny diagnostician, it does sound like your assumption is correct to head to the ...
|
| 2003 keyless entry. | 7/8/2007 |
Q: how do i reset the keyless fob to my 2003 gmc quadrasteer. i have fobs from a 2000 gmc. at the ...
A: Important All transmitters which are to be recognized by the PDM must be programmed in a single ...
|
| Speaker Problems for 2003 Envoy | 7/7/2007 |
Q: I have a 2003 GMC Envoy and both of the rear speakers aren't working. The settings are fine on the ...
A: I am assuming the rear speakers in the rear doors? or the rear hatch? If the rear doors, there are 2 ...
|
| 2002 GMC Envoy stalling on hard turns | 7/7/2007 |
Q: My 2002 Envoy acts like it's going to stall when I crank the steering wheel hard to pull out of a ...
A: I searched SI and found no mention that that vehicle has a P/S sensor. If it did it would be located ...
|
| vacuum line for heating and a/c: | 7/6/2007 |
Q: I have a 1997 Pontiac Bonneville SE. When I select air flow to come out of the vents in the dash it ...
A: You can splice the line. Use 5/32nd vacuum hose to splice the hard plastic line. GM does not have a ...
|
| 1999 Saturn SC2- shorted I/P fuse block? | 7/6/2007 |
Q: My electric locks haven't been working, and I've been told that there was an internal short to the ...
A: The fuse block is a bussed electrical center. There are hard wired circuits that run through the ...
|
| 1997 gmc yukon 4wd 5.7L | 7/5/2007 |
Q: I have a misfire on cylinder #6.I've had a full tune-up spark plugs,wires,distributor cap,rotor ...
A: if you have done all you listed, the next area to look at will be Engine Mechanical. Preform an ...
|
| 02 Sonoma FTP sensor issues | 7/5/2007 |
Q: I have a 2002 GMC Sonoma, 5 spd, 4X2, w/ a 4.3L V6. My truck just plain died while trying to back ...
A: Can you have someone attempt to crank truck while you hold ear to fuel tank, and listen for pump to ...
|
| Blower motor stuck on high | 7/4/2007 |
Q: 99 GMC suburban 5.8lt. The blower motor was on low and just kicked into high. I can not change it ...
A: Without having the vehicle I can tell you on that particular system the problem can be either the ...
|
| 2002 GMC Yukon SLT - ABS NOISE | 7/4/2007 |
Q: we have a 2002 GMC Yukon SLT 5.3liter with 98,000 miles. There is a noise coming from the vehicle ...
A: The noise is the ABS pump motor stuck on due to an internal short inside the EBCM (Electronic Brake ...
|
| 1994 gmc van transmission | 7/4/2007 |
Q: My speedometer is not working and my transmission will not shift. I had it check and the speed ...
A: I would check the wiring to the VSS (vehicle speed sensor). Also I would check that particular ...
|
| 2005 2500 Dermax diesel 160000km | 7/3/2007 |
Q: I have a loss of power problem, after driving down the highway and pulling my trailer I lose the ...
A: At this timwe, my best advice would be to take it to a repair shop that is familiar with the 6.6 ...
|
| 99 gmc suburban drl's | 7/2/2007 |
Q: My daytime running lights on my 99 GMC Suburban are not working. (combo drl/headlight) The light on ...
A: Sounds like the DRL Diode is your fault. Yes it is located under the dash, just to the right ...
|
| 2002 GMC Encoy | 7/2/2007 |
Q: BOTH LOW BEAM HEADLAMPS WENT OUT WITH NO WARNING. CHECKED 10 AMP FUSE IT WAS OK. CHANGED BULBS BUT ...
A: The BCM (body control module) recieves the headlamp ON signal from the switch. The BCM then sends ...
|
| GMC Sierra A/C Issue | 7/1/2007 |
Q: Hey, I know you said you prefer 99 or newer but i thought this may be a somewhat universal repair. ...
A: Dont mind the older vehicles, just the schematics and location of items are getting harder to find. ...
|
| 1986 Firebird 2.8 liter high idle problem | 6/30/2007 |
Q: Have a 2.8 liter. Idles at about 2k RPM after reaching normal operating temperature. Good idle ...
A: I looked over schematics and everything I coul find. Apparently, there is a cold start injector ...
|
| radiator | 6/30/2007 |
Q: 2000 yukon denali where is radiator drain? overheating and fluid is black! no water is in oil just ...
A: I beleive it is located on the left side of radiator (drivers side). It may be hard to see or turn, ...
|
| A//C problem | 6/30/2007 |
Q: The ac stopped working in my 2004 GMC Sierra 2WD 2500HD 6.6Duramax Diesel. I have checked the fuse ...
A: Was this a sudden problem, or has it been not cooling good for a while or what, I would ask first. ...
|
| IS THERE A RESET FOR YOUR AIR SUSPENSION | 6/29/2007 |
Q: MY 2002 ENVOY'S REAR END HAS DROPPED. THE COMPRESSOR IS COMING ON BUT NOTHING IS HAPPENING. I ...
A: No there is NO reset for this system. There is a lengthly relearn procedure that helps sometimes. I ...
|
| 2000 GMC Sierra Brake Problems | 6/29/2007 |
Q: I own a 2000 GMC Sierra and I am having problems with my brakes. There are no leaks in my braking ...
A: Two things can cause this. 1) Master Cylinder. 2) ABS Pump. I actually have NEVER seen an ABS pump ...
|
| a/c problems | 6/28/2007 |
Q: Starting yesterday the a/c only cools on the passenger side. The dual system is no longer working ...
A: Unless you have a HUGE difference in temperatures (eg.. cold on one side and like the heater on the ...
|
| 1973 chevy c10 pick up conversion | 6/28/2007 |
Q: the problem im having is with a 1992 buick roadmaster motor and Trans the 5.7 i put them into my 73 ...
A: quick questions Did the loaner car have a "chip" in the key? IF SO it sure does sound like a Passkey ...
|
| bank 1 and bak 2 oxygen sensors | 6/28/2007 |
Q: ok i went to autozone and check why my engie light was on and there were two codes they were p0172 ...
A: Bank 1 is left side (drivers side) Bank 2 is right side (passenger side) You must also remember Rich ...
|
| Engine noise | 6/27/2007 |
Q: I have a noise very similar to a lifter sticking which has gotten louder the last few months. Only ...
A: From experience, now, I have run into this I think you MAY be looking at a failed lifter that has ...
|
| Fuse Panel | 6/26/2007 |
Q: I have a 1989 GMC Suburban and interior lights, horn and lighter do not work but everything else ...
A: My 89 manual does not list anything about a lighter. I can only ASSUME that it is fed by the same ...
|
| rattle when accelerating | 6/25/2007 |
Q: I HAVE A 1990 BUICK RIVIERA AND THEIR IS A RATTLE UNDER THE HOOD THAT SOUNDS LIKE THE WATER PUMP ...
A: I would check the belt tensioner and also any idler pulley on this motor. You could also take the ...
|
| AC/Fan control | 6/25/2007 |
Q: I own a GMC K1500 Z71 Pickup, it has a 350 Vortec and auto if it matters. The A/C has always worked ...
A: With a Vortec I am guessing a 95-99 year model truck? If so there is no vacuum lines and or vacuum ...
|
| Air Conditioning | 6/25/2007 |
Q: I have a 1995 6.5 turbo diesel... the air conditioning will not work.. have checked the freon and it ...
A: jump the two wires together, using a very small wire. I would start with the low pressure switch, ...
|
| Engine misfiring ? | 6/24/2007 |
Q: well i have a chevy malabu 98 model with a 2.4L twin cam engine with 184,000 miles on it and i was ...
A: On this particular engine I would suspect the Coil Housing and or the 2 coils. They are VERY COMMON ...
|
| 1998 blazer code 1351 idm | 6/24/2007 |
Q: i recently bought this car and the service engine light came on. i checked it with my code reader ...
A: There is a pretty long test to diagnose this code. Only 2 PARTS could be fault either the Ignition ...
|
| Air Conditioning | 6/23/2007 |
Q: I have a 1995 6.5 turbo diesel... the air conditioning will not work.. have checked the freon and it ...
A: Is the compressor running? Does it turn on when the switch is depressed? Is the Fan inside the cab ...
|
| faulty brake lights | 6/22/2007 |
Q: I own a 1999 GMC Yukon. When I depress the brake pedal lightly I get brake lights, but as I increase ...
A: Never ran into this before, but I can see where as the Brake lamp (stop lamp) switch is PROBABALLY ...
|
| wiring headlights and reverse lights | 6/22/2007 |
Q: i just bought a 93 or 94 GMC Vandura 2500. it runs fine but i need a way to hook my reverse lights ...
A: My honest opinion would be to do one of two things 1) Get a used steerring column from a Salvage ...
|
| A/C problems | 6/21/2007 |
Q: OK my Friend, My ac will not do anything but the ac light flashes for several minutes after I crank ...
A: Hey thats great. The condition is called Logic Lock and it was a common problem with that ...
|
| 97 gmc Sierra ac/heater fan control | 6/21/2007 |
Q: I need to know about a 97 gmc Sierra 1500. The fan (low to high) control switch has stopped ...
A: First check down close to the Blower motor, follow the blower motor 2 wires up about 8-12 inches ...
|
| GMC | 6/20/2007 |
Q: Hey, I am having GMC Envoy SLE year 2002 engine 4.6 acutely the car start giving me a headache ...
A: Sami As much as I hate to tell you, I really think the truck will need to get scanned to be properly ...
|
| car not accelarating | 6/20/2007 |
Q: opel corsa 2004 classic comfort 1.4 When pushing accelerator does not move especially on steep ...
A: Not knowing exactly what or where an Opel Corsa is from, I would suspect 2 things 1) Fuel pressure, ...
|
| NO instrument panel lights, NO power to windows, NO A/C blower, No shifting out of 1st gear | 6/20/2007 |
Q: I have a 94 GMC Safari with a 4.3 engine. We have encountered a problem when we started the car - I ...
A: I see nothing in common with the circuits your having trouble with EXCEPT the ignition switch. There ...
|
| 1997 GMC Yukon 4WD 8L; 233,000 miles | 6/19/2007 |
Q: My Yukon has a knock in the engine that doesn't occur after a cold start. It only occurs after the ...
A: Is it a knock or a ping? If it is a knock, you'll need to get the #5 cylinder checked. Check ...
|
| 2000 GMC Safari intermittent miss | 6/18/2007 |
Q: No codes are being produced thru the PCM (checked 3 times) at aoto repair shop. There is an ...
A: 2 suggestions 1) have the shop check the DISTRIBUTOR cap and rotor again and check for corrosion due ...
|
| Truck Vibrates at 65mph and above | 6/17/2007 |
Q: 1999 GMC Suburban 2WD 1500. 130K miles I took my truck in for brakes, serpentine belt,and smog ...
A: ALL vibrations ON A VEHICLE are a reaction of a rotating component. A worn part MAY be a result of ...
|
| 98 GMC Envoy Headlight | 6/17/2007 |
Q: My driver's side headlight is out, and at first I believed it was an aftermarket product, but it has ...
A: As much as I hate to be the bearer of bad news, it looks like you'll have to either purchase the ...
|
| turn signals | 6/16/2007 |
Q: I have a 1995 geo tracker I have no turn sinals the emergency lights all flash fine there are 2 ...
A: There is only the one relay for both turn and hazard. There is only One other item in the system, ...
|
| A/C problems | 6/15/2007 |
Q: OK my Friend, My ac will not do anything but the ac light flashes for several minutes after I crank ...
A: 3 things to try 1) Disconnect the positive battery terminal AND the negative terminal. Take the 2 ...
|
| 99 GMC Sierra- Digital Gear Indicator | 6/15/2007 |
Q: The digital display that reads P R N D... will flash off and on while driving. I mostly notice it ...
A: It sound like a loose connection. It could be in either the IPC (Instrument cluster) itself. This ...
|
| 1995 gmc sierra sle a/c | 6/14/2007 |
Q:
A: 2 things I have seen cause this problem. First check to make sure there is not a plastic bag stuck ...
|
| AC blower motor | 6/14/2007 |
Q: I have a 2000 gmc safari van ,6cyl. The blower would not blow on high so I changed the blower ...
A: I see a few things you can do. remove the headlamp relay underhood fuse box, just make sure to plug ...
|
| Signal Light on passenger side not working | 6/14/2007 |
Q: My 99 GMC Yukon signal light not working, nor does the brake light on the passenger side. Replaced ...
A: The only other part I could suggest is the bulb circuit board. the black board all the bulbs snap ...
|
| chev duramax diesel lb7 no oil pressure | 6/13/2007 |
Q: 2001 Chev Duramax Allison Transmission 56,000 km – after oil change “check oil pressure” light is on ...
A: I will do further research on this problem. I have found 2 items that MAY or MAY nothelp. 1 is too ...
|
| Brakes | 6/13/2007 |
Q: HELP! I just bought a 1992 GMC Safari Minivan W/AWD and 4WABs. When I drove it I first noticed a ...
A: I would first check the rubber brake hose from the steel line to the caliper. The rubber hoses have ...
|
| cyl. misfire | 6/13/2007 |
Q: just changed plugs & wires on 2000 GMC Sonoma,4cyl,2.2,5 speed w/air.Ran fine all wknd until this ...
A: Misfire can be coil the coil tower MAY be rusted. It may also be a fuel injector problem. The ...
|
| Recommended Oil for a 1988 GMC S15 | 6/12/2007 |
Q: What is the recommended Oil for a 1988 GMC S15 PICKUP 2.5L L4 FI engine w/ 59,000 original miles?
A: Alot depends on your winters cold, and your summers heat. Also what type of driving your going to ...
|
| 98 grand am ignition switch | 6/12/2007 |
Q: i bought a 98 grand am and had to replace the ignation switch. now the car will catch but will not ...
A: Try this Time required, approximately 10 minutes. Insure that the battery is fully charged. Use ...
|
| fuel pump | 6/12/2007 |
Q: easiest way to change fuel pump on 01 gmc sierra
A: Remove 8 bolts holding bed on frame. Unplug electric connectors on rear drivers side Unbolt (3) ...
|
| 02 gmc truck | 6/11/2007 |
Q: 3 liter v8 i went outside last night to roll my windows up and it wouldnt start i finally got it ...
A: When you hook up the battery, do you notice a humming from under the drivers side of vehicle? If so ...
|
| Vibration in front end | 6/11/2007 |
Q: I have a 1997 Chevy Venture Van. Engine size I don't know. I have been having a bad vibraton in the ...
A: MOST vibrations ON A VEHICLE are a reaction of a rotating component. A worn part MAY be a result of ...
|
| new fuel pump, new fuel relay, no fuel | 6/10/2007 |
Q: 1994 chevy k1500 5.7 truck died, replaced fuel relay, banged on tank ,and it started ,shut off ,no ...
A: The PCM controls the fuel pump on the green/white wire. It should get hot KOEO. The orange wire, ...
|
| speedo intermittant on '03 duramax/allison | 6/10/2007 |
Q: 2003 GMC K2500HD w/ duramax/allison. The speedometer has recently started to read low, below zero or ...
A: Your #3 is correct. These vehicles (GM Trucks/full size SUV's) have a SERIOUS problem with the ...
|
| citroen engine | 6/9/2007 |
Q: i have bought a citroen saxo and it has had a new head gasket fitted and it is making a tapping ...
A: I am a GMC technician, I think you may have picked me by mistake. I can tell you though, OIL ...
|
| yukon denali 2000 5.7 engine stalls and stumbles when hot restart after 5-10mins | 6/9/2007 |
Q: ! i have this concern with a 2000 denali when hot it stall and runs like its out of gas. i have ...
A: I do not have a clear cut answer for you. I know an engine needs fuel, fire and compression to ...
|
| rear brake cylinder | 6/9/2007 |
Q: I am mechanically inclined but not much on trucks. I am a hot tub repair tech and went to school ...
A: Here is the actual GM procedure Mark the relationship of the wheel to the hub. Remove the tire. ...
|
| electrical short in 2000 Yukon Denali | 6/8/2007 |
Q: What would be the central problem in an electrical system that shorts out like when you try to put ...
A: The power windows are on a circuit breaker. When these breakers "trip", they will make the windows ...
|
| 1999 GMC Safari A/C | 6/8/2007 |
Q: The air only comes out of my defroster and passenger floor. I know it sounds like a vacuum problem ...
A: The best thing I could tell you is that check vacuum at all the vac. connections/door actuators both ...
|
| Interior Switch Lights not working | 6/8/2007 |
Q: 2001 Buick Lesabre. A number of control button lights were not working so I replaced the headlight ...
A: These switches your having lighting issues with DO NOT have bulbs. They use LED'S that are fed from ...
|
| 2000 Jimmy | 6/7/2007 |
Q: I have a 2000 GMC Jimmy 6.3 V 4 wheel drive. Whenever I drive the vehicle, the check 4 wheel drive ...
A: Yopu'll need to take the vehicle to a repair facility that can scan the computer for codes. Most ...
|
| 02 Grand AM GT 3.4L (solenoid) | 6/7/2007 |
Q: I have the type of vehicle stated in the subject line, but today I went out to start my car and got ...
A: Lets see if this helps...... Remove instrument panel (I/P) accessory trim plate. (this is the ...
|
| GMC ignition switch or Passlock II issue?! | 6/6/2007 |
Q: 2003 GMC Sierra 5.3L v8 70000 miles - Hello! Driving down highway truck just quit like someone ...
A: To diagnose Passlock III system on this vehicle we'll need to retrieve codes from VTD system (BCM). ...
|
| 02 Grand AM GT 3.4L (solenoid) | 6/6/2007 |
Q: I have the type of vehicle stated in the subject line, but today I went out to start my car and got ...
A: Next time it will not start, see if it is not blinking. If so, it MAY be the theft deterrent system, ...
|
| gmc won't start | 6/6/2007 |
Q: I have a 1992 gm x, wasn't running very well so i replaced wires cap roter button, started first ...
A: First thing I would check is fuel pressure. If it is a full size truck with a V-8 it HAS to have ...
|
| Fuel gauge not working | 6/5/2007 |
Q: The fuel gauge on my 91 sonoma was working fine. I shut the truck off when I got to work when I went ...
A: Its a pretty simple circuit. The pink wire from the fuel sender (In tank) feeds the cluster. It ...
|
| 02 Grand AM GT 3.4L (solenoid) | 6/5/2007 |
Q: I have the type of vehicle stated in the subject line, but today I went out to start my car and got ...
A: Sounds like it very well may be your starter. Here is the replacement preocedure directly from GM ...
|
| GMC Vandura starting issues | 6/5/2007 |
Q: I Have a 1986 GMC Vandura that usually starts on the second try, occasionally though, on the second ...
A: I would suspect the starter. Given the symptons you state, and just experience. You could easily ...
|
| electrical problem? | 6/4/2007 |
Q: I have a 2000 chevy tracker and I had my alt., battery and oxygen sensor and belt replaced last ...
A: I would check the battery, and I also would check the Alt again. Depending on what or where all this ...
|
| '83 S10 blazer misfire | 6/4/2007 |
Q: '83 S10 blazer 4x4 2.8 engine, auto, air. Engine stumbles as if ignition problem but only when the ...
A: After rersearching the only things I could think of are 1)Low engine vacuum. The controller uses ...
|
| Fuel guage reading empty at 1/3 tank | 6/2/2007 |
Q: I just bought an '03 GMC SAFARI conversion van with 40K miles on it. I found that the gas gauge ...
A: I researched the schematic for your van, and it looks like the unless you can actually test the ...
|
| Transmission GMC | 6/1/2007 |
Q: Hey, I am having a GMC Envoy 2002 model, unfortunately where I live there is no representative of ...
A: Fluid capacity will depend on how much fluid was pumped out as well as the diameter of the Torque ...
|
| 1992 chevy silverado radio | 6/1/2007 |
Q: 92 silverado 1500. which has the radio, and separate tapedeck on the other side of the dash. plus ...
A: The reciever under the dash IS the radio. The "control head" that you adjust volume on, change ...
|
| AC blower motor | 6/1/2007 |
Q: I have a 2000 gmc safari van ,6cyl. The blower would not blow on high so I changed the blower ...
A: I would check the plug of the Blower resistor and the plug for the motor. Make sure they are not ...
|
| rear end pinion gears | 5/31/2007 |
Q: while replacing the outer seals that were leaking, I pulled the axles out and the pinion shaft gears ...
A: You'll need to get the pinion gears lined up with the side gears. You'll need to get them both equal ...
|
| Vacuum problem 2002 Yukon Denali 6.0 | 5/31/2007 |
Q: I think this is a vacuum issue, but I'm not 100% sure. I'm pretty decent with fixing stuff, but this ...
A: To assist you with the SES lamp, I'll need the exact code numbers as each of the sensors you list ...
|
| Chevy Blazer Electrical Problem... | 5/30/2007 |
Q: I recently brought my car (03 Blazer LS 4.3) to a garage with a problem they diagnosed as ...
A: My best advice to you is to take it back, and tell them to FIX whatever they did. If it was NOT ...
|
| Headlamp replacement 1997 GMC Yukon | 5/30/2007 |
Q: My headlamp low beam has gone out and I purchased a replacement bulb for the lamp but cannot figure ...
A: With hood open and On the "top" of the headlamp assembley, you'll see 2 long thin bolts (I THINK the ...
|
| 1997 GMC 5.7 350 1500 SLE sierra | 5/29/2007 |
Q: I have a 1997 gmc 5.7 1500 pickup 4 months ago i had a miss. so I replaced wires,plugs,coil,tps,fuel ...
A: Does the service engine soon light come on? If so get it scanned, probabally a P0300 misfire. These ...
|
| 93 Jimmy signal light problems | 5/28/2007 |
Q: 1993 GMC Jimmy, 4 door, four wheel drive. 4.3 motor. A month ago my original signal light flasher ...
A: If all the bulbs are good, and you've replaced the flasher, the next thing I would suspect would be ...
|
| venture van engine noice | 5/28/2007 |
Q: I have a 2002 Venture that has "diesel like" sounds coming from the engine when running.
A: There are ALOT of things that can make noises. It could be a misfire. Could be something loose ...
|
| 99 GMC Suburban Multi-Function Connector | 5/27/2007 |
Q: I am replacing the multifunction switch on my 1999 GMC Suburban (1500, 4WD, 5.7l, Automatic, Cruise ...
A: You'll have to removed the 7mm bolt that secures the large connector together. Then you'll see the 2 ...
|
| oil leak | 5/27/2007 |
Q: my 95 chevy taho 5.7 leaks oil when it is idelling i can smell oil burning as it falls on the exhust ...
A: Yes it could be the intake gaskets. It COULD be the oil pan gasket. Best advice, take it to a ...
|
| 89 GMC truck | 5/27/2007 |
Q: I have a 1989 GMC 1500, 305, auto, nothing fancy. I have an intermittent starting problem. The truck ...
A: The PCM uses the ICM (ignition control module) for injector pulse. It pulses every TDC #1 cyl fire. ...
|
| Humming noise | 5/26/2007 |
Q: I have a 2005 GMC Yukon that has a humming noise comming out of a one inch device (looks like a ...
A: Here is the EXACT GM Bulletin for your concern- The following diagnosis might be helpful if the ...
|
| ran out of gas | 5/26/2007 |
Q: We think that our 2001 Chevy Venture ran out of gas, but when we added gas it still would not start. ...
A: No switch, no trick. If it still will not start, You'll need to see if you have fuel pressure (GM ...
|
| 1994 GMC 2500 Suburban 6.5 Turbo Diesel | 5/25/2007 |
Q: I'm having cranking problems with my diesel.I ohm'd out my Glow plugs they seem o.k. I removed the ...
A: Make sure the lift pump is pumping at all times (Located on frame, under drivers seat area) You ...
|
| 1997 GMC Savanna 2500 Van | 5/25/2007 |
Q: Have 97 GMC Savanna 2500 Van with 4.3L Auto Transmission that starts & runs for appox 1.5 Hours then ...
A: I did checking and I came up with a few things to check. First I would check the Ignition control ...
|
| compound question | 5/25/2007 |
Q: my 93 gmc Z71 jerks hard when it makes the first gear shift, then it shifts smoothley. Could it be ...
A: First with tranny, check the fuel filter. If it is OK, I would check all other tune up items (plugs, ...
|
| turn signals | 5/24/2007 |
Q: i have a 98 gmc sonoma with a 4.3 liter v6. the turn signals and hazard flashers do not work at all. ...
A: I beleive your diagnosis is correct, the Turn flasher module operates both turn signal and hazard ...
|
| 1994 GMC Jimmy | 5/24/2007 |
Q: I have a 1994 S15 Jimmy with the 4.3L Vortec engine and Auto trans. It has 99K miles. My problem is ...
A: Get the garages to check fuel pressure. It should be 55-61 psi. Anything less and it will stall and ...
|
| Starter Replacement | 5/23/2007 |
Q: For about a month, my 1996 GMC JIMMY V6 4dr 4x4 has been making a grinding noise when I start it. ...
A: Yes it is a pretty involved job. You have to loosen all motor mounts and the tranny. mount and ...
|
| 1999 yukon denali electrical problem? | 5/22/2007 |
Q: I have 99' 5.7L yukon denali and my power door locks only worked when they felt like it,i brought it ...
A: sorry for the delay. I checked and I cannot find a 99 Denali. I found a 2000, but not a 99. That ...
|
| 1994 GMC 3500 6.5 DIESEL 4+4 | 5/22/2007 |
Q: NOT ALL THE TIME BUT ON A 30 MINUTE TRIP AFTER THE TRUCK HAS SET ABOUT 45 MINS. TO AN HOUR IT CRANKS ...
A: Does the service engine soon light ever come on? If possible, could you take it somewhere and get it ...
|
| 2002 GMC Yukon Loss of Power | 5/22/2007 |
Q: While driving am experiencing a loss of power with not check engine indicators at all. The vehicle ...
A: Really sounds like a fuel pump to me. The Z motor pumps were really bad. This is what I think you ...
|
| GMC C1500 Does not start | 5/21/2007 |
Q: I have a 1500 with a 5.7 EFI 1994,It will not start we have spark, and think the fuel pump might be ...
A: Sounds like the fuel pump to me. To check for sure, hook a fuel pressure gauge to the system ...
|
| 1997 sierra 2500 ecm swap question | 5/21/2007 |
Q: My Truck has been running bad lately. It will idle and accelerate well, but when you ease off of ...
A: In the glove box, you should have a sticker with the RPO codes for your truck. It'll be about 3"x3" ...
|
| 1997 sierra 2500 ecm swap question | 5/20/2007 |
Q: My Truck has been running bad lately. It will idle and accelerate well, but when you ease off of ...
A: It will need to be programmed. Those codes are Transmission codes. Was the Engine size the same? ...
|
| cluster | 5/19/2007 |
Q: I replaced my insrument cluster in a 2004 GMC Seira.How do I program the new one
A: Needs to be reprogrammed with a scan tool. Either at a GM dealership or an authorized AC Delco shop ...
|
| what cam | 5/18/2007 |
Q: Do you know what cam is in my 95 GM suburban it is a 350ci? I need to no if it is a roller cam or ...
A: Here are the FACTORY specs for the cam installed in a 1995 350 Engine Engine Liter/CID 5.7L/V8-350 ...
|
| four wheel drive | 5/18/2007 |
Q: i have a 94 s10 blazer with a 4.3 vortec my four wheel drive does not work i have a eletric transfer ...
A: I found 2 schematics for 2 different 4WD systems. If you have an electric actuator on the front ...
|
| rear brake lockup with damp or bumps | 5/17/2007 |
Q: I have a 93 GM 3/4 ton 4x4 6.5 D pickup. It has 5 speed tran. It has rear drum brakes that are ABS ...
A: I really hate to gusss at this. I have never run across this problem before. I know that I would ...
|
| GMC VANDURA PROBLEM | 5/17/2007 |
Q: My GMC Vandura 1996 3500 1 ton, 5.7 liter V.8 with this problem, whereby, the service engine light ...
A: There are NUMEROUS items that can cause the Service Engine Soon light to come on. The computer ...
|
| 89 GMC 5.7 | 5/17/2007 |
Q: Truck turns over too long before starting after sitting for a few hours (starts good if only off for ...
A: For fuel leakdown, You'll need to hook a fuel pressure gauge to the fuel system, usually hook where ...
|
| 2000 GMC Jimmy Brake Lights | 5/16/2007 |
Q: The brake lights for my truck have went out. I have checked all fuses and they are good. The center ...
A: Sounds like the Turn signal switch is your fault. Check the white wire from the stop lamp switch. If ...
|
| 1999 gmc suburban | 5/16/2007 |
Q: System to lean bank 1 and 2 came on the scanner and code po171 and po174 what does this mean?
A: It means that both banks (sides) are running lean. That is either too much air or not enough fuel. ...
|
| repair on gmc | 5/16/2007 |
Q: I have a 95 GMC Jimmy truck. I have replaced the computor,rotor button and cap. I also have ...
A: It is either in the distributor, under the rotor, OR it is located on the right side of the engine ...
|
| Electrical | 5/15/2007 |
Q: I have a 92' S10 Blazer 2wd (4.3L TBI), and a couple of days ago, all the gauges in the dashnoard ...
A: I looked at the schematic and I would say to unplug the fuel pump purple wire (fuel pump located ...
|
| 1992 Suburban | 5/15/2007 |
Q: It starts up and dies out, over and over. Is it the fuel pump, filter, or something totally ...
A: Check fuel pressure should be 9-13 psi. If either to high or to low, it will cause your condition. ...
|
| 99 Suburban | 5/15/2007 |
Q: How hard is it to disconnect the brake from the booster? I do not have small hands and when I looked ...
A: They used 2 different "Clips" to hold pedal/stop lamp switch to booster rod. One was a round wavy ...
|
| serpentine belt 1988 S-15 - 2.8 liter | 5/14/2007 |
Q: My serpentine belt is worn . How easy/hard is it to change one? Is there an automatic belt ...
A: You got it. Yes that is the way to replace the serp. belt. Usually the Belt tensioner uses either a ...
|
| Key Problems | 5/14/2007 |
Q: I have a 2001 Saturn SL1. I have had a problem where I put my key in the ignition and it won't turn. ...
A: I would suggest 2 things I have seen common problems with GM key cylinders. 1) (least expensive) ...
|
| 1996 GMC Full size 8' 4x4 350 | 5/13/2007 |
Q: My driver side rear wheel locks up, only in foward not in reverse, could it be the brake(drums)or ...
A: I would jack up truck, removed the drivers side wheel assy AND remove the brake drum. See if the ...
|
| Chevy S10 jerking hard when hot | 5/13/2007 |
Q: My 1993 S10 2 wheel drive 4.3 liter jerks terribly when it has run for awhile. In stop and go ...
A: You did not say, but has a Tune up been suggested to you? Sparks from the distributor/coil/plug ...
|
| 1998 GMC Savanna 1500 | 5/13/2007 |
Q: when starting, the gauges: oil, fuel, etc. act erratic. Even while driving they appear to be ...
A: I checked all sources i have and I do not see anything in common with all these systems, except G101 ...
|
| GMC safari 1988 | 5/12/2007 |
Q: Vehicle is on propane but wont start it worked the day before but in the morning i went out and the ...
A: First I will answer this as if it were a gasoline engine as I have no reference for a CNG vehicle. ...
|
| Prop Shaft Spline Lubrication | 5/12/2007 |
Q: 2000 Chevy Tahoe Z-71 5.7 engine. (This is the "old" generation style with the 5.7 engine that was ...
A: There is no zerk for the splines, the prop shaft must be removed and the grease installed into the ...
|
| Brake warning light at 35 MPH | 5/11/2007 |
Q: I have a 1990 2500 Pickup, AT, 2wd 350. the brake/ ABS warning light was flashing a 10 code. I ...
A: Are the rotors new? If not, remove rotors and clean all the speed sensor rings and speed sensor. ...
|
| '02 Yukon Parking Brake | 5/10/2007 |
Q: The parking brake/emergency brake does not work. Really it works, just not well. There is no ...
A: Your park brake shoe is mis adjusted. It does need to be adjusted. The rear calipers must be removed ...
|
| 1996 gmc jimmy | 5/10/2007 |
Q: I have a 1996 Jimmy and the blinker do not work at all. It is not the fuse, we checked do you have ...
A: Does either side work? If not I would suspect the turn signal flasher, located under the center of ...
|
| 1994 gmc yukon | 5/9/2007 |
Q: im trying to set the timing on my 94 gmc yukon 5.7L. and my single wire electronic spark timing ...
A: Are you getting any service engine soon light? I would suspect the Ignition module inside the ...
|
| istrument cluster lumina car 1996 | 5/9/2007 |
Q: i have question i have chevy lumina 1996 v6 3.1L (car) i replaced the speedometer it was damaged ...
A: USUALLY clusters are ordered by part numbers. I am assuming that yours was. IF SO minor differences ...
|
| 2002 GMC duramax diesel dually | 5/8/2007 |
Q: Reverse just went out on. Forward fine. 60.000 miles. idiot light on for check engine. No other ...
A: Firs I am assuming you have an LCT1000 Allison Automatic Transmission, not a standard shift? If so ...
|
| Brake warning light at 35 MPH | 5/8/2007 |
Q: I have a 1990 2500 Pickup, AT, 2wd 350. the brake/ ABS warning light was flashing a 10 code. I ...
A: Just from what you state, I'd have to say you MAY have a faulty module. If iy does the SAME thing, ...
|
| fuel pressure effecting tranny | 5/7/2007 |
Q: I have a 99 denali and recently the transmission started acting really weird not shifting sticking ...
A: It's not there is something in the Engine control system, but lack of fuel will effect the ...
|
| THANKS!!!!!! ( Slow take off now) | 5/7/2007 |
Q: 1996 Chevy Astro ....Boy you sure know your stuff! You put me right on my problem it was the ground ...
A: The A/C is probabally a vacuum leak somewhere. Over by the battery the vacuum line , from the engine ...
|
| 2004 Envoy | 5/6/2007 |
Q: My Envoy has the digital thermometer inside but is stuck on 60 degrees no matter what the actual ...
A: Your assumption are correct. There is an otside ambient temp sensor located in the front of truck, ...
|
| HVAC display not working | 5/6/2007 |
Q: I have a 1991 GMC 350 2 wheel drive pick up. Not winter driven. Started the vehicle to discover ...
A: three things for you to try. 1) just unhook the negative battery cable. let it stay for a few mins. ...
|
| 98 gmc sierra 1500 cut out | 5/6/2007 |
Q: on a couple occasions while turning left my truck has cut-out. once it stopped completly the other ...
A: I would check the wiring for the MAF sensor, if you have repalced the sensor already. Wiggle the ...
|
| 1993 gmc 2500 no running lights front or back | 5/5/2007 |
Q: i have a 93 gmc 2500 4.3 6 cyl running lights where apparently working before i bought the truck ...
A: First are you speaking of Daytime running lights, or park lamps? If your speaking of Daytime Running ...
|
| '01 Sonoma ODTC P1137 | 5/5/2007 |
Q: My '01 Sonoma has a 'Service Engine Soon' light with a P1137 stored code. Where is the Heated ...
A: Bank 1 sensor 2 is located on the LEFT (DRIVERS) Side exhaust pipe AFTER the converter IF YOU HAVE A ...
|
| Bonneville Dash Lights | 5/5/2007 |
Q: The Dashboard lights on my wife's 1999 Bonneville SSEi work only intermitently. Either the headlamp ...
A: Here is the 3 steps per GM Service 1)Pry upward in order to remove the windshield defroster grille ...
|
| 99 gmc sonoma | 5/4/2007 |
Q: How do i reset the service engine soon light on my 99 gmc sonoma? Also My fuel gauge is not working ...
A: Service engine soon light on OBDII vehicles HAVE to be reset by a scan tool. Fuel gauge is ...
|
| leaking power steering fluid | 5/4/2007 |
Q: my 99 suburban with the 7.4L engine is leaking power steering fluid out the back of the master ...
A: If it is Power steering fluid, the Hydro Booster is leaking and should be replaced. You should be ...
|
| Surging Headlights and Dash Lights | 5/4/2007 |
Q: I have had a 1992 Pontiac Trans Sport since new. (3800 engine) I had the original alternator ...
A: Just to clarify, the surging pertains ONLY to the lights, and not the actual idle quality of the ...
|
| electrical? my wipers are going haywire | 5/3/2007 |
Q: Chevy astro 1996 180,000 Everytime I turn my headlights on my front and rear wipers come on and ...
A: Without seeing vehicle, yet I did some research looks like the wipers, right headlight and a/c ...
|
| 1995 GMC Jimmy | 5/3/2007 |
Q: I have a 1995 GMC Jimmy SLS v6 4.3 2wd 149,000miles and my problem is this: after I changed my ...
A: I am not a heavy tranny tech, but I can tell you if it WAS NOT doing this before, it sounds like you ...
|
| Rear wheel locking up | 5/2/2007 |
Q: My other question is sometimes going from reverse to drive in my 2001 yukon the rear tire locks up ...
A: I would check all the brakes, rear calipers for binding, worn parts, park brake shoes for wear ...
|
| GMC Safari turns over but wont start sometimes | 5/2/2007 |
Q: I have 99 GMC Safari sometimes in the morning it will not start acts like not getting spark.Had to ...
A: There is 2 options for you. 1 would be to get a new distributor. The second is to have your mechanic ...
|
| Daytime Running lights | 5/2/2007 |
Q: I have a 2001 Yukon and when I start my truck instead of just the DRL coming on all the lights come ...
A: first there is an ambient light sensor located in the middle of the dash between the defrost vents ...
|
| Brakelight switch | 5/1/2007 |
Q: I have a 1997 gmc sierra, recently I had a new brakelight switch installed. About 2 weeks later it ...
A: Sounds like it may be being installed improperly OR they are not putting the clip back on correctly. ...
|
| rear brake and warnig lights | 5/1/2007 |
Q: i have a 1993 chevy z71 and i cant get my rear brake and warning lights to work. I've check the ...
A: Brake lights run from the STOP/HAZ fuse to the stop lamp switch located on the pedal. The white wire ...
|
| brake light is out | 5/1/2007 |
Q: I have a 1999 2 door GMC Jimmy. The driver's side brake light is out. I tried changing the bulbs ...
A: Sean OK I see now. Tapping into the CHMSL (Center High Mounted Stop Lamp) runs off a different ...
|
| Airflow Problem | 4/30/2007 |
Q: I have a 1996 GMC Jimmy and the airflow only comes out of the defrost no matter what selection i ...
A: The vacuum line attaches to manifold vacuum on the right (passenger side) of engine. It goes along ...
|
| 2000 GMC Denali inside drivers door handle broken | 4/30/2007 |
Q: I have a 2000 GMC Yukon Denali. The door handle on the inside of the drivers door is broken or ...
A: Remove window switch/mirror switch/tweeter speaker assembly by inserting a SMALL thin blade ...
|
| A/C Fan | 4/30/2007 |
Q: I have a 1990 GMC 1500 pickup. The fan motor for the A/C changes speeds by itself, seem to notice it ...
A: On this system, there could be a few things. Either the A/C Controller, blower resistor, High speed ...
|
| 93 Suburban flasher unit | 4/29/2007 |
Q: I have a 93 GMC Suburban 350. Only 220k miles, still good compression, runs great, always had Mobile ...
A: Sounds like you are correct, sounds alot like the Flasher. It is located under the dash to the left ...
|
| Tach, Speedometer, Trans acting up! | 4/28/2007 |
Q: It is a '95 GMC Sierra K1500, 4WD, 350, Automatic My Tach, Speedometer like to go on an off. When ...
A: The transmission and speedo COULD be the VSS (Vehicle Speed Sensor) and or related wires. The Tach ...
|
| Won't turn over with key | 4/28/2007 |
Q: My 1996 GMC Sierra would not turn over. Shorted starter-turned over. Went all the way to ignition ...
A: Make sure the ignition switch is timed properly. If it is out of time, it will create the problem ...
|
| 1996 Chevy Tahoe - Throttle Body Sensor | 4/27/2007 |
Q: Having trouble with a throttle body sensor. Replaced throttle body sensor, still had problems. Ran ...
A: I am assuming the TPS (Throttle Position Sensor) is what you are referring to. Also I am assuming ...
|
| 1993 GMC Sierra C1500 Pickup won't start | 4/27/2007 |
Q: The truck will turn over but won't actually fire. We have changed the fuel pump, fuel filter, cap ...
A: What was the original complaint? Was the truck running and died, and never started back? or did you ...
|
| 02 Yukon Daytime Running Lights | 4/27/2007 |
Q: Just bought an 02 Yukon SLT and the daytime running lights are not working. I tried replacing the ...
A: It is VERY likely that both bulbs AND the sockets they go into are burned. It is a VERY COMMON ...
|
| 1993 GMC Sierra C1500 Pickup won't start | 4/26/2007 |
Q: The truck will turn over but won't actually fire. We have changed the fuel pump, fuel filter, cap ...
A: You say it has spark but is getting no fire. Where is it getting spark to? Is it going into the ...
|
| '92 Park Avenue, shudders @ cruise speeds | 4/25/2007 |
Q: I hope you will be able to diagnose my problem. I have a 1992 Buick Park Avenue (not Ultra, no ...
A: I would check have your mechanic check the plugs, wires, and coils and ignition control module as a ...
|
| brake light is out | 4/25/2007 |
Q: I have a 1999 2 door GMC Jimmy. The driver's side brake light is out. I tried changing the bulbs ...
A: Check in the Under Hood fuse block, there should be a fuse for the Right stop light (RT TURN, RT TRN ...
|
| 1999 GMC Jimmy | 4/24/2007 |
Q: Daytime running lights always go out when blinker is turned on. What might cause this? Thanks.
A: Here is the ACTUAL GM Bulletin for your condition. Subject: DRL Turn Signal Interrupt Design - kw ...
|
| Back door will not open | 4/24/2007 |
Q: I cannot open the back door on a 1992 GMC Safari Van. The door unlocks but the door opening ...
A: JUST going from memory I think you take screws out from around rear door panel. Take any screws out ...
|
| 2002 GMC YukonXL | 4/23/2007 |
Q: A/C has stopped working as of this morning. Checked door fuse panel and fuse is good. Fan motor ...
A: First, check freon level. Low freon pressures will not allow compressor to turn on. Check the belt, ...
|
| 4x4 Not working | 4/23/2007 |
Q: ive got a 2001 gmc sierra 4x4 z71. Recently i did the front axle outer seals that alwasy seem to ...
A: I would put the cause more towards the Transfer case Encoder motor. If you just changed the outer ...
|
| 1995 gmc door handle needs to be replace | 4/22/2007 |
Q: ok i have a 1995 GMC 2500 pickup no power windows or door locks, the driver side door handle on the ...
A: Remove the window crank Remove the 2 screws in the hand pull area of panel. unclip the mirror trim ...
|
| Rough Idle | 4/22/2007 |
Q: I have a 1997 Chevy Tahoe 5.7L 4x4 the check engine light is on and blinks when at an idle (when ...
A: This is JUST a guess from what you say. I will say up front, you really should go get this checked ...
|
| Flasher bad in a 1998 Buick | 4/21/2007 |
Q: Neither one of my turning signals work in my car. Can you tell me where the Flasher is for a 1998 ...
A: Located on the BCM (Body Control Module) bracket, under the left (driver side) under the dash. Here ...
|
| ignition timing | 4/21/2007 |
Q: What is the ignition timing for 1977 GMC 3500 with 400ci.
A: Best I can discover is 5 degrees at 12-14" vacuum. I would suggest maybe trying your local public ...
|
| 2000 GMC Yukon Air Conditioning HeadLiner Sensor | 4/20/2007 |
Q: My 2000 Gmc Yukon has an interior airconditioning sensor about the size of a Quarter located in the ...
A: Here is the EXACT GM Bulletin for your concern- The following diagnosis might be helpful if the ...
|
| 88 Sierra won't fire, seems to be electrical | 4/20/2007 |
Q: My 88 2500 seems to have kicked off on me. I got home, parked it, went to get back in it about 15 ...
A: I studied the electrical schematic for your concerns. I only see 2 things in common. First I would ...
|
| 2004 gmc envoy | 4/19/2007 |
Q: My service 4 wheel drive light came on and stayed on. I have not ever had it in 4 wheel drive. I ...
A: With the mileage, as long as your 3 years have not run out, your vehicle SHOULD still under ...
|
| Oil Pan Change in 2001 Chevrolet Blazer - V6 Engine | 4/18/2007 |
Q: What is the best way to change an oil pan in a 2001 Chevrolet Blazer with a V6 engine? Is it best to ...
A: I beleive you can get it out by dropping the tranny, but I think removing the engine would also be ...
|
| broken fuel linkage cable replace | 4/18/2007 |
Q: my fuel linkage cable broke at the pedal and the cable pulled out from the pedal when it broke.how ...
A: Looks fairly straight forward. My advise, though would be to remove the Engine Cover (dog house) ...
|
| Intake Manifold | 4/18/2007 |
Q: How do i change the intake manifold on a 1996 GMC Jimmy SLT? ANSWER: Hi Upper or lower intake? ...
A: Remove or disconnect- 1)Negative battery cable. 2)Drain the cooling system. 3)Air cleaner intake ...
|
| 2001 gmc electric brake wiring harnass | 4/17/2007 |
Q: i purchased wiring harnass for electric trailer brake.this is the new harnass.i can't find the older ...
A: After days of research, I CANNOT find one single schematic for the electric brake wire on this ...
|
| surburn not getting fuel | 4/17/2007 |
Q: i replaced the fuel filter and pump. and still not getting fuel its in a 1990 surburn do they have ...
A: Fuel pump relay AND fuse are located on the under the hood, right side of the firewall around where ...
|
| surburn not getting fuel | 4/17/2007 |
Q: i replaced the fuel filter and pump. and still not getting fuel its in a 1990 surburn do they have ...
A: Is the pump running? Is The fuel pump getting power? Did you happen to notice the connector where ...
|
| 93 GMC Safari Van Brakes | 4/16/2007 |
Q: To open, thanks for your help. I have a 93 GMC Safari AWD EXT van with 165K miles, purchased new. ...
A: Then, I would check the fluid flow through the LR wheel Cyl. just like bleeding it. See if you ...
|
| coolant leak | 4/16/2007 |
Q: i have a 1995 gmc sierra k1500 4x4 pickup it over haeated and i noticed coolant leaking from the ...
A: I would be willing to think it MAY be the intake manifold gasket leaking. If it were a rear freeze ...
|
| Rear Blinker | 4/16/2007 |
Q: I have a 96 Yukon and my left rear blinker wont work. I tried replacing it with another assembly ...
A: A Few questions Does the left front work? Does it do anything such as do they blink very fast or ...
|
| ABS and Brake Light Coming on in 01 Yukon | 4/16/2007 |
Q: The ABS and Brake Light is coming on while driving our GMC 01 Yukon. This does not happen all of ...
A: You'll need to take vehicle to a repair shop that can scan the Antilock Brake system, and retrieve ...
|
| Intake Manifold | 4/16/2007 |
Q: How do i change the intake manifold on a 1996 GMC Jimmy SLT?
A: Upper or lower intake? Exactly what type of advise would you like, Step by step? It will be hard to ...
|
| Injection pulse width error | 4/16/2007 |
Q: '94 Silvarado 2500 4x4, 6.5 Turbo Diesel.I am getting an intermittent trouble code 36 -Injection ...
A: 36 is an internal Pump fault. It is the Fuel Solonoid portion of the pump. The fuel injection driver ...
|
| Gmc Feul Vent not working | 4/15/2007 |
Q: I cant put fuel in my 01 Jimmy last night I took the fill line apart to make sure there was nothing ...
A: Here are the most common causes for your symptom Check the valve stuck closed Fill limiter vent ...
|
| serpentine belt noise | 4/15/2007 |
Q: I have a 2000 GMC Safari 4.3L. I have a severe belt noise all the time. I have had the belt replace ...
A: I would have a guess at a few things. First and most least expensive would be to again replace belt ...
|
| problem starting | 4/15/2007 |
Q: I have a 98 jimmy 4x4. I had the battery replaced about 4 months ago. Friday, I had a problem ...
A: Sound to me like a battery problem. With 10.5v it sounds like a dead cell or an internal open inside ...
|
| constant clicking in signal flasher-behind glove box on 1998 jimmy | 4/15/2007 |
Q: As soon as you start truck the flasher behind glove box clicks as if signal is on constantly ...
A: Yes this is VERY possible as the brake lamp circuit passes through the multifunction/turn signal ...
|
| 1994 4.3 liter Vortac Fuel System | 4/15/2007 |
Q: I have a 1994 s-10 Blazer with a Vortac 4.3. The suv will loose power at any giving time. I put a ...
A: If you have the VIN W CPFI system, the pressure should be between 55 and 61 PSI with Key On and pump ...
|
| constant clicking in signal flasher-behind glove box on 1998 jimmy | 4/14/2007 |
Q: As soon as you start truck the flasher behind glove box clicks as if signal is on constantly ...
A: I would first check the ground(s) for the turn signal flasher circuit. If clean and properly ...
|
| 2000 GMC Sierra 4WD in-op | 4/14/2007 |
Q: I am having trouble with my GMC's 4WD system. This morning (sorta cold, 11 deg f) I went to put it ...
A: If you could or can SAFELY jack or lift vehicle and SAFELY SECURE it and run it with all 4 wheels ...
|
| 2001 Buick Century - brown oil-like liquid in antifreeze | 4/14/2007 |
Q: I had my radiator flushed 2X, once at 7,000 miles and again recently at 37,000 miles. I chnaged the ...
A: Since you have been using the green coolant for such a long time I'd stick with it. I would suspect ...
|
| buick park ave | 4/14/2007 |
Q: my oil pump want bad which cause a tapping sound under the hood i drove it for 30 miles do you think ...
A: My advise at this point would be to take vehicle to a mechanic in your area that you trust, and get ...
|
| mixing dexcool and green coolant | 4/14/2007 |
Q: What can happen if these two coolants are mixed.I noticed in my 97 Sonoma there is green in the ...
A: Lets see if I can answer this and not offend anyone. Being a long time GM tech, I would say to flush ...
|
| dead battery | 4/13/2007 |
Q: multiple times go out in the morning and battery is dead,, replaced battery works ok for while and ...
A: This could get pretty complicated. My first advise would be to preform a parasitic draw test on the ...
|
| removal of center 4.3 | 4/13/2007 |
Q: Can you tell me how to remove the center spark plug driver side on a 2000, 4.3 gmc jimmy? The ...
A: I wish I could tell you there is a special tool, but none exsist. I Cannot remember the exact socket ...
|
| Signal Flasher Repair | 4/13/2007 |
Q: We have a 1996 GMC Jimmy S10. The turn signal lights work but no flash. Where is the signal flasher ...
A: Flasher is located in the center of the dash, in the Power Distribution Center. The Power ...
|
| fuel pump | 4/13/2007 |
Q: 2001 gmc single cab flatbed dual tanks.which tank has the fuel pump. transfer pump?
A: On dual tank applications, The secondary fuel pump is located in the secondary fuel tank. The ...
|
| buick park ave | 4/12/2007 |
Q: my oil pump want bad which cause a tapping sound under the hood i drove it for 30 miles do you think ...
A: It is possible. If the tap is a deep "throaty" knock, that would be a crank shaft related knock, ...
|
| inside dooor handle | 4/12/2007 |
Q: I have a 2002 gmc envoy and the inside door handle is coming loose, whats the best way to take this ...
A: I have looked through manuals looks like the replacement of handle is your only option. I also ...
|
| GMC JIMMY | 4/11/2007 |
Q: My speaker in the driver door isn't working. How can i take off the door panel to look at the ...
A: This is the actual procedure from GM Remove or Disconnect first unhook battery negative cable. ...
|
| 2000 GMC Sierra 4WD in-op | 4/11/2007 |
Q: I am having trouble with my GMC's 4WD system. This morning (sorta cold, 11 deg f) I went to put it ...
A: From what you tell me and from my experience I would have to condem the Transfer Case Encoder Motor. ...
|
| 87 gmc 1500 fuel/electrical | 4/11/2007 |
Q: i just bought a 1987 gmc 1500 its got the 350 motor with throttle body injection. it does not run ...
A: The ECM looks for the ignition signal wire from the Distributor, specifically the Dist Ignition ...
|
| 1998 Buick LeSabre Limited | 4/10/2007 |
Q: The fan blower on my Buick will run sometimes and then quit,then after a few minutes it may run 5 or ...
A: First do you have automatic air or Manual controls? Located Under the hood on the right (passenger ...
|
| 1990 GMC Sierra won't start | 4/10/2007 |
Q: I have a 1990 GMC Sierra that will not start. The engine will turn over but I am not getting any ...
A: Is there fire getting into the distributor from the coil? If so you have a faulty Dist rotor or cap. ...
|
| 2000-silverado | 4/10/2007 |
Q: I took my truck in for a safety, and they said the daytime running lights didn't work. (they did ...
A: As for the fog lights, check the bulbs first, make sure they did not get water in with the bulbs. ...
|
| shudder at highway speed | 4/10/2007 |
Q: My 1997 GMC Yukon kind of shudders or pauses, feels like a bump, at highway speeds/cruise control. ...
A: You did not say for sure, did you change the Distributor cap and distributor rotor? If not try that ...
|
