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Fuel gauge not working properly

Tiny
TRACY PULLEN2
  • MEMBER
  • 2004 HUMMER H2
  • 6.1L
  • V8
  • 4WD
  • AUTOMATIC
  • 130,000 MILES
My gas gauge works kind of, it moves from full to empty but it is pointing down instead of up like normal.
Wednesday, July 24th, 2019 AT 11:33 AM

3 Replies

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

This sounds to me like the fuel level sending unit wires are grounding out to each other. I have included the Fuel Level Sending Unit Wiring Diagram in the diagrams down below. Please use this wiring diagram to locate and inspect the two wires going to the sending unit for grounding to each other and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros
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Wednesday, July 24th, 2019 AT 4:13 PM
Tiny
TRACY PULLEN2
  • MEMBER
  • 2 POSTS
Thanks I'll check it out
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Wednesday, July 24th, 2019 AT 4:44 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Please let us know what you find. We are interested to see what it is.
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Saturday, July 27th, 2019 AT 6:13 PM

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