No power to the fuel pump

2002 GMC SIERRA
150,000 MILES • V8 • 2WD • AUTOMATIC
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SACH38
  • MEMBER
  • 1 POST
put a new fuel in. No power going to it. I already checked all the fuses and relay.
Dec 12, 2007 at 5:50 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
The computer energizes the fuel pump relay for 2 secs. Do you hear the pump for 2 secs when key is at On position. This is the time it should have power- You have to be at the fuel pump connector when key is at "on" position all you got is to 2 secs. Check it out and comeback with your findings meanwhile familiarize the schematic below.


https://images.2carpros.com/forum/automotive_pictures/12900_oil_sending_unit_and_fuel_pump_circuit_22.gif

Dec 12, 2007 at 8:06 PM
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SC02GMC
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Was there ever a finding if so can you post it please I’m in the same situation?
Sep 2, 2020 at 8:00 PM
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

I'm not sure if that was resolved. However, I will try to help. Have you checked if there is power to your fuel pump? Is your vehicle the same year make and model as what is listed?

Let me know.
Joe
Sep 2, 2020 at 8:19 PM