Cadillac Repair/Throttle Box

Advertisement

Expert: - 1/15/2011


Question
Hello my is Rico Brantley  and i own a 1996 Cadillac sedan deville  I am electronics technician  and  I need the schematics for the mentioned above car so i can see blend door actuator is located  thank you...... also can you help me with cleaning the throttle box because my car is shaking when idle and driving .. already changed all four coil packs, spark plugs and wires and the fuel filter which after 3wks still smelling a strong gas odor

Answer
Hello,

I do not have schematics or any diagnostic information for a car that old. Buying manuals will cost you hundreds if you can even find them.

When I need such information, I got to http://www.alldata.com

The information is not free and they do charge $30, but you get all the factory repair manuals you can download for a year for your exact year make and model. Had you done this you would not have had to change all the stuff you did and could have found your problem right away.

As for your fuel smell, the fuel pump runs whenever the ignition is on. Turn the ignition on and look for the obvious leak! Could be coming from the fuel filter you installed.
If you are smelling a strong odor of gasoline, you should see the problem when you turn on the ignition. Check the filter first and then the engine area for somewhere you might have bumped working under the hood.

These engines had plastic fuel delivery lines that became brittle over time and easy to accidently fracture. In fact, these lines were known to cause fires spraying puddling gasoline on the exhaust manifold. This was a very common problem. The plastic fuel line I am referring to is on the driver's side at the throttle body. The question would be; did you have that fuel smell before you worked on the car?

http://www.autotheftexpert.com

Cadillac Repair

All Answers

Answers by Expert:

Ask Experts

Volunteer

Rob Painter

Expertise

Alarm system questions cannot be answered on this forum. These systems are not what I can answer. Without being physically at the vehicle and not knowing what kind of electrical service has been done on the vehicle, there is no possible way to give an accurate answer over the internet. My expertise is in Ignition/key based anti-theft systems. These issues include GM VATS (resistor chip in key blade) PASSLOCK (MRD)-ignition lock rotation based, no special ignition key and the PKIII Transponder (computer chip in key) systems. These systems are not alarm based and are integral with the starting of the engine. This is why I cannot diagnose alarm problems without physically looking at the vehicle: Alarm systems are a completely different annimal than ignition key/lock based anti-theft system. Many alarm questions come from vehicles 10 years old, and since older, many hands that had been involved over the years.I am an expert in all GM factory (ignition/key based)systems. Alarm system questions pose to many situations beyond my knowledge as to what has been done to the vehicle over the years. Some guy may have actually wired the stereo into the alarm system. Who knows? Over my past 30 years in vehicle wiring repair, I have seen unbelievable wiring disaters done by guys that consider themselves "mechanics." I have seen stereos and alarms intalled using surgical tape. I have seen modules burn up, un-fused circuits, wiring jambed between the doors and even lamp cord used for a starter kill. To answer alarm questions over the internet without examining the vehicle is like asking; What does it take to remove a dent?

Experience

Education/Credentials-ASE certified. 11 years with a GM dealer and 17 years with a repair facility dealing with only the repair of theft recovered vehicles.

©2012 About.com, a part of The New York Times Company. All rights reserved.