no power to fuel pump

1996 GMC SONOMA

100 MILES • 4.3L • V6 • 2WD • AUTOMATIC

REPAIRMAN_TIM

MEMBER
1 POST
FOLLOW

Fuel pump went out. (Tested-it was dead) Replaced fuel pump. Still no fuel. Tested new pump. Works when hot ran straight from bat. Fuse in regular dash fuse panel is good. Swapped out relay in glove box. Still no power to fuel pump.
Is there another fuse? Or some other sensor that would cause loss of power?

Mar 23, 2014 at 12:03 PM

JACOBANDNICKOLAS

CERTIFIED EXPERT
110,175 POSTS

You need to see if power is at the relay here is a guide to show you how.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Here is the engine and fuel pump wiring diagrams so you can see how the systems work.

Check out the diagrams (Below)

Please let us know what you find.

Cheers

Images (Click to enlarge)

Mar 24, 2014 at 5:42 AM

REPAIRMAN_TIM

MEMBER
1 POST

Thanks for the guides it was the #9 fuse causing the problems got it all fixed up.

Mar 28, 2014 at 5:02 AM