Fuel gauge sometimes not working properly

Tiny
UNKPHL
  • MEMBER
  • 1999 CHEVROLET S-10
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 80,000 MILES
Most of the time the tank registers full tank, every now and then it will register empty. Before replacing the fuel pump I was wondering if there might be a bad ground causing the issue. Any ideas on what to look for
Saturday, October 5th, 2019 AT 7:20 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,300 POSTS
Welcome to 2CarPros.

Anything is possible, but most times it is the rheostat on the float or a bad connect at the pump. The pump and level sensor are grounded at the same point. You can just replace the fuel level sensor. See picture 1. I highlighted the part I'm referring to. Picture 2 shows ground location.

If you need directions for tank removal, pump replacement or anything, let me know.

Take care,
Joe
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Saturday, October 5th, 2019 AT 10:04 PM
Tiny
UNKPHL
  • MEMBER
  • 3 POSTS
Thank you. I couldn't find any information and wanted to make sure it had a good ground before pulling the tank.
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Saturday, October 5th, 2019 AT 10:41 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,300 POSTS
Welcome back:

You're welcome. Let me know if you need anything.

Take care,
Joe
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Sunday, October 6th, 2019 AT 7:47 PM
Tiny
UNKPHL
  • MEMBER
  • 3 POSTS
It was the sender. Thanks for the help.
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Saturday, November 2nd, 2019 AT 5:22 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,300 POSTS
Welcome back:

Glad to hear you got it fixed. Were you able just to get the sender or did you have to purchase the entire assembly?

Joe
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Saturday, November 2nd, 2019 AT 11:42 PM

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