GMC Repair: 1997 GMC Jimmy Cranking problem, electric fuel pump, fuel pump relay


Question
-------------------------
Followup To
Question -
Car would not crank after cutting off. No prrevious cranking problems. Wrongfully assumed ignition module and ignition pick up coil inside the distributor.  Car has spark comming from the coil.
Answer -
NEVER EVER guess, It get's to expensive replacing non-returnable electrical parts on a MAYBE this will fix the problem assumption.

OK, If you are POSITIVE you have ignition, Then your problem must be fuel pressure and or fuel volume.

Do this test, It requires 2 people:

1. Remove the gas cap.

2. Put your ear at the gas cap opening.

3. have your helper turn the ignition (KEY) to the "ON"
  position ONLY, DO NOT crank the engine.

4. Can you hear the electric fuel pump run for 2 (TWO)
  seconds and then stop ?.


Let me know.


autohelp


Can't hear fuel pump making any sound at all. Thanks

Answer
Have you checked the fuel pump fuse ?. Usually located in the fuse panel labled F/P. Physicall y remove and inspect, or better yet, Test each fuse with an ohm meter to be sure it has continuity from one side to the other. Sometimes a visual inspection does not guarantee that the fuse is GOOD.

Have you had ANY repairs of ANYKIND performed on this vehicle prior to this problem ?. I mean ANYTHING, Even replacing light bulb.

QUESTION: Do you know where the FUEL PUMP relay is located on this vehicle ?.

let me know ASAP.


autohelp