1991 Cadillac Deville Car wont start

JORDY82

MEMBER
1991 CADILLAC DEVILLE
V8
FWD
AUTOMATIC
120,000 MILES

Went to get gas and when I went to turn the car back on it wouldn't crank over. I went and bought a new battery and nothing. Bought a new alternator again nothing. I have lights and radio but car will not start or even try to crank. What's the problem?

3 Replies

MATHIASO

MECHANIC
1,209 POSTS

HELLO Extra

Either the fuel pump or timing chain is the problem.
The first one is likely.
Open the fuel filler neck, while starting the car, you listen to the fuel pump through the filer neck.
You should hear a buzzing sound.
Get back to me if you hear it or not.

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Friday, December 25th, 2009 AT 10:34 PM

JORDY82

MEMBER
2 POSTS

I just had the fuel pump replaced 2 months ago there is no buzzing sound. Im thinking starter because it wont even turn over. There is absolutely no noise or clicking when I turn the key.

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Friday, December 25th, 2009 AT 10:45 PM

MATHIASO

MECHANIC
1,209 POSTS

Check for disconnected battery (red cable) to the starter.
If the cable is tight and clean,
Check for a disconnected purple wire at the starter. If the purple wire is good,
Check starter relay, located front seating area, passenger side, under dash, mounted behind glove compartment cavity.
If changing the relay does not change the problem, the starter is bad.

Check your email for the diagram

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Saturday, December 26th, 2009 AT 12:48 AM