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  1. #1

    Default Gas gauge acting erratic

    I have a 2001 Silverado LS and from time to time I notice the gauge reading empty and the fuel light on and then it goes back to read the actual fuel level. It tends to happen when I have less than 1/2 a tank but not completly empty.
    Any ideas?
    Thanks
    Rick Marquez

  2. #2

    Default

    Most likely the sending unit is going bad.

  3. #3

    Default

    Thanks for the reply. I thought the same thing but wanted different opinions.
    Rick Marquez

  4. #4
    Master Mechanic
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    Eliminate the obvious and most likely it is going to the sending unit. Check connections, wiring, grounds all the standard stuff. Keep an eye on it and see if it does it again...

    Jeff
    JMoney02

  5. #5
    Jr. Mechanic
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    Jul 2008
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    Default

    Typical Chevy problem. The fuel gauge sensor is all part of the fuel pump assy. You'll have to replace the whole assy, be prepared, it's expensive. Stay away from the advance auto/autozone (Aztec assy) they are junk.

  6. #6

    Default

    Quote Originally Posted by k.daddy1 View Post
    Typical Chevy problem. The fuel gauge sensor is all part of the fuel pump assy. You'll have to replace the whole assy, be prepared, it's expensive. Stay away from the advance auto/autozone (Aztec assy) they are junk.
    You don't have to replace the whole assembly, GM sells the sending unit alone for around $100. I did it to my Dad's 05 Yukon XL this past summer. You still have to pull the pump though.
    Gary

    99 K 1500 Suburban
    78 Silverado Big 10 w/factory 454
    00 S-10 Blazer
    1976 Trans Am
    1980 Honda CB900 Custom

  7. #7
    Master Mechanic
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    Quote Originally Posted by GaryL View Post
    You don't have to replace the whole assembly, GM sells the sending unit alone for around $100. I did it to my Dad's 05 Yukon XL this past summer. You still have to pull the pump though.
    Correct! Not that bad if you have the time and tools and want to save some bucks....


    Jeff
    JMoney02

  8. #8

    Default

    Thanks everyone. Now I know where to start looking.
    Rick Marquez

  9. #9
    Sr. Apprentice exceler8's Avatar
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    Nov 2008
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    Pine Plains, New York
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    Default

    You dont need to do the whole assm. But I would strongly recommend that you do the whole thing. One goes, the others are close too. Plus it is not like changing a air cleaner. It is a P.I.T.A So do it all at the same time once.....

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