Cadillac Repair: cadillac repair, fuel pump relay, cadillac repair

Question
I have filled my gas tank on my 2003 Cadillac and I am unable to restart the engine. The battery and cranking ability are good.  The car has been parked overnight but the condition still remains.  The gas prior to filling was very low.  Could this be a problem with fuel injection?  Is there a possible quick fix or should I have the car towed to a dealer?

Answer
Fuel pump test:

1. Get yourself a helper.

2. remove the gas cap.

3. have one person listen in the gas tank at the gas cap opening.

4. have the other person turn the ignition switch to the ON position ONLY so as the dash lights come on. Do NOT attempt to start the engine.

5. As soon as the ignition key is turned to the ON position, The person at the gas tank should hear the fuel pump run for TWO SECONDS and then it should STOP.

6. Does it ?.


If you do NOT hear it run, in most cases the fault is the fuel pump relay or the fuel pump..