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Cadillac Repair/1993 cadillac deville wont start

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Expert: - 10/16/2010


Question
I was driving my 93 deville the other day it was running good. I stopped at a gas station and ran in 2 mins later i came out and it wouldn't start? When i turn the key all the lights turn on and everything works but when i turn the key it don't turn over it don't make any noise at all? i thought it was cause my alarm battery was dead so i changed it but nothing. I got under the car and hit the starter with a screw driver and the car turned over but wouldn't start. Does anyone know what the cause could be?

Answer
Hi,

If the engine would not turn over and then once you hit the starter with a screw driver and it cranked, we know for a fact you need a starter.

I can also tell you that your problem is not a factory anti-theft vats problem and should  not be a problem in your after market alarm.

You could have a fuel delivery problem or a spark issue.

Your complaint is too vague to give you any direct answer.

Could be fuel pump, plugged fuel filter. Could be as little as a fuse or a bad computer.

All I can do with the limited information is give suggestions.

You may need to have the car taken to a service center (never a dealer) and have diagnostic equipment hooked to it to find out exactly what the issue is.


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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.

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