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1997 GMC Suburban Fuel Pump Wiring Issues

Tiny
ALFREDREECE1992
  • MEMBER
  • 1997 GMC SUBURBAN
  • 5.7L
  • V8
I recently got the Suburban, and the guy told me the fuel pump was bad but when we got it home it turns out they had cut all of the wires going to the fuel pump. I was wondering if you might could provide a good wiring diagram for this suburban, or a link to one. I've been searching for one online but can't seem to find a really good one to go by.
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Thursday, February 5th, 2015 AT 9:10 PM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
The new fuel pumps come with a about a foot of harness to splice in as they changed connectors due to pumps failing. That is why the harness has been cut I'd bet but the person didn't' splice in the new one. See pic and stick with delco on pumps the others fail to quick
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Friday, February 6th, 2015 AT 6:04 AM
Tiny
ALFREDREECE1992
  • MEMBER
  • 2 POSTS
Thank you for this diagram its going to help out a lot. The thing is about the cut wires is not only did he cut in the back but under the hood as well, that's where the headache was in finding what ran where.
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Saturday, February 7th, 2015 AT 10:58 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Should be gray all the way to relay for pump.
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Saturday, February 7th, 2015 AT 11:09 AM

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