Chevrolet Repair/98 Chevy Monte Carlo Z34 3.8L V6 wont start
Expert: TOM SHEETS - 1/26/2013
Question 1998 chevy Monte Carlo z34 3.8L
My car turns over but won't start up, been having a anti freeze leak problem I think coming from water pump or intake manifold(upper passenger side of engine, below altenator and belts). cars resevoire only holds antifreeze for a couple days, and engine smokes from the leak. car would heat up then slowly cool down but wouldnt overheat the coolant light would stay on most the time. The other night I drove without warming the engine up as I usually do and my car began behaving like it was running out of gas, and the check engine light came on. I stopped it then it wouldn't turn on for 20 mins. After that I drove it home and the next day started it up fine but didnt drive. It hasn't started since. The code that came up is P0171 system too lean (bank 1) any help solving this issue would be greatly appreciated. Also the weather has been very cold lately if it helps.
Answer HI BRIAN, WELL BRIAN FIRST THINGS FIRST, YOU NEED TO REPAIR THE COOLANT LEAK BEFORE ANYTHING ELSE. WHEN YOU SAY YOU STOPPED THE CAR DO YOU MEAN YOU TURNED IT OFF AND THEN TRIED TO RESTART IT AND IT WOULD NOT START...JUST CRANK AND CRANK ??? IF THIS ENGINE GOT REAL HOT THIS COULD CAUSE THIS..BUT SINCE IT HAS COOLED DOWN NOW IT SHOULD START..SO YOU NEED TO FIND OUT WHAT IS MISSING EITHER FUEL OR IGNITION..REMOVE A SPARK PLUG WIRE AND PUT A SCREW DRIVER IN THE WIRE END AND PUT IT ABOUT 1/4 OF A INCH AWAY FROM A METAL SURFACE.HAVE SOMEONE CRANK THE ENG OVER WHILE YOU LOOK FOR SPARK. IF NO SPARK MAY HAVE A BAD CRANK SENSOR OR IGN MODULE,,IF THERE IS SPARK THEN YOUR PROBLEM IS NO FUEL..REMOVE THE CAP ON THE FUEL RAIL FOR THE CK VALVE AND PUSH THE SHRADER VALVE DOWN WHILE SOMEONE CRANKS THE ENG OVER THERE SHOULD BE FUEL THERE THE ENTIRE TIME THE ENG CRANKS OVER..IF NO FUEL IS THERE THE FUEL PUMP IS FAULTY OR THERE IS A WIRING PROBLEM TO THE FUEL PUMP..THE PO 171 SYS TO LEAN WOULD NOT CAUSE A NO START..THIS COULD BE CAUSED BY OVERHEATING PROBLEM HOWEVER.. THIS SHOULD KEEP YOU BUSY FOR A WHILE. LET ME KNOW WHAT YOU FIND..TOM
PLEASE READ ALL OF THIS BEFORE ASKING ANY QUESTIONS. IF THIS CHEVY SECTION IS MAXED OUT.YOU CAN REACH ME IN THE OLDS/BUICK SECTION. Will answer questions from 6:00am to 10:00pm all days [EST][[[ NO DIESEL OR PAINT QUESTIONS]]] will answer all 1965 to present QUESTIONS ON ALL GM'S on mechanics of these cars. Keep in mind i am not there in person i am going on what you are telling me !! PLEASE IF ASKING A QUESTION GIVE ME AS MUCH INFO AS POSSIBLE. THE MORE THE BETTER. SUCH AS YEAR,MAKE,MODEL,ENGINE SIZE. THIS WILL HELP ME HELP YOU. I will not be able to answer all questions because of some situations that i would really need to be there and see things for myself,such as electrical issues. In many cases i would need wiring diagrams. I can also give you an estimate on what the cost would be at our repair shop as an idea to help you. Keep in mind that my answer is ONLY MY ADVICE,ck with your mechanic as well.. >> THANK YOU, TOM..
I have been a ASE certified master mechanic for over 30 years and certified IN ALL 8 CATEGORIES,[engine repair,engine performance,auto trans,manual trans,clutches,steering and suspension,brakes,electrical systems,heating and air/cond. I am also a state CERTIFIED inspector for over 30 years. I do computer work [pcm]fault codes,pcm flashing,state inspection monitor readiness,repairs on exhaust,fuel service,[injection and carburetor,] charging system problems, running issues,alignments,frame problems,tire balance,struts and of course standard and anti-lock brakes.
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Education/Credentials high school,4 years of tech school,and many many hours of auto training with many gm classes and aftermarket training classes..
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