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1999 Chevy S-10 Fuel gauge wanders even when vehicle sittin

Tiny
1999S10
  • MEMBER
  • 1999 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 97,000 MILES
The subject line pretty much says it all. You can be sitting in the vehicle perfectly still and the fuel gauge wanders all over the place. I have had another problem with the check engine light coming on when the vehicle is hot on hot days. I am told the computer code says it is the "evaporative emission sensor" in the fuel tank. But I don't see how the two could be related. Is it the dash gauge, the wiring, or the sending unit in the tank? Or something else?
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Friday, September 10th, 2010 AT 7:14 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
That is most likely a bad fuel gauge sender. They have a lot of problems with them due to the additives in the fuel. You can confirm it by just unplugging it and see if the wandering stops.
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Friday, September 10th, 2010 AT 7:41 PM

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