1991 Cadillac Deville Car wont start

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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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.

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