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96 GMC 1500/Fuel pump not shutting off!


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TowJoe
New User

Sep 27, 2011, 11:06 AM

Post #1 of 6 (2058 views)
post icon 96 GMC 1500/Fuel pump not shutting off! Sign In

Mad I've just replaced the motor in my 1996 GMC Sierra 1500, 4.3L Vortex, and now the fuel pump is staying on! I have replaced the fuel pump and and checked the wiring and relay but to no avail! If I pull the ECM-B fuse it shuts off but that is the only way! Even with the Fuel pump relay pulled it still runs.Pirate Please, any suggestions are welcomed! I even have a very large gun I can use! LOL... just Kidding!


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 27, 2011, 11:34 AM

Post #2 of 6 (2037 views)
Re: 96 GMC 1500/Fuel pump not shutting off! Sign In

Do you mean even with the key off?



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



TowJoe
New User

Sep 27, 2011, 11:45 AM

Post #3 of 6 (2030 views)
Re: 96 GMC 1500/Fuel pump not shutting off! Sign In

Yes, even with the key off.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 27, 2011, 12:10 PM

Post #4 of 6 (2024 views)
Re: 96 GMC 1500/Fuel pump not shutting off! Sign In

Try unplugging the oil pressure switch.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



TowJoe
New User

Sep 27, 2011, 1:03 PM

Post #5 of 6 (2019 views)
Re: 96 GMC 1500/Fuel pump not shutting off! Sign In

WinkSmileCoolLaughYou are f***ing awesome! Would've never seen it! That OPS is cracked and as soon as I unplugged everything worked fine except for that OPS.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 27, 2011, 1:05 PM

Post #6 of 6 (2016 views)
Re: 96 GMC 1500/Fuel pump not shutting off! Sign In

Hahaha, no problem. Glad I could help.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







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