Fuel pump wiring diagram

1996 GMC C3500
150,000 MILES • 5.7L • V8
Avatar
GEORGE GILLAM
  • MEMBER
  • 4 POSTS
No fuel psi.
Mar 2, 2019 at 2:27 PM
Advertisement
Avatar
ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
Good evening,

I attached a wire diagram for you to view. Check the highlighted wire for power when cranking.

Roy
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Mar 2, 2019 at 2:50 PM
Avatar
GEORGE GILLAM
  • MEMBER
  • 4 POSTS
Roy, thank you. i am cleaning up someones hack job.
Mar 2, 2019 at 4:41 PM
Avatar
ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
Got it.

You are welcome.

Always glad to help.

Roy
Mar 2, 2019 at 4:53 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
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.