1994 GMC Jimmy 94 jimmy fuel pump / no start

1994 GMC JIMMY

126,000 MILES • 6 CYL • 2WD • AUTOMATIC

CHRISTOPH80254

MEMBER
4 POSTS
FOLLOW

I have a GMC jimmy 1994 with 126000 miles. it left me stranded the other day . I replaced the fuel pump and filter and sending unit today. It still will not start. If i put gas in the intake it runs fine till it burns it off. I checked the bleed off valve right behing the manifold and its getting gas all the way to the intakes. Im at a loss on what to do to get my truck running any advice would be greatful!! thanks for your time.
chris in louisiana

Mar 29, 2008 at 9:25 PM

MERLIN2021

CAR REPAIR CONTRIBUTOR
17,250 POSTS

I think Raz is refering to the oil pressure/fuel relay cutoff switch on the top rear of the engine, also does the pump run for 2-3 seconds after the key is turned to on? Have you checked for power at the pump?

Mar 30, 2008 at 5:55 AM

CHRISTOPH80254

MEMBER
4 POSTS

yes when i turn the key the pump kicks on for 2 seconds. i can hear it. So i should check the oil pressure fuel relay cutoff? is that the same thing as the fuel pump relay?

Mar 30, 2008 at 8:06 AM

MERLIN2021

CAR REPAIR CONTRIBUTOR
17,250 POSTS

No...the oil pressure switch is on the top rear of the engine, If this is the CFI unit check for brittle wires at the injector...

Mar 30, 2008 at 8:14 AM

MERLIN2021

CAR REPAIR CONTRIBUTOR
17,250 POSTS

Check the CFI unit's wires...

Mar 31, 2008 at 12:54 PM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.