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Posted on Nov 16, 2008
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Fuel Gauge Not Reading

I replaced the fuel pump and the truck started right away. The only thing that came out wrong was that my fuel gauge is not reading the gas that I have in the gas tank. Please Help!

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  • signdsgnr Nov 24, 2008

    My 1999 Sierra Ext Cab also has intermittant fuel reading. the gauge shows empty even after a complete fill up and the low fuel light is lit until I drive aboout ten miles or so.. where is the float electrical connection located? is it on top of the tank behind the cab?

  • Anonymous Apr 10, 2009

    2000 GMC Sierra has the same problem. Didn't have it when the car was new. Developed about a year ago. The "low fuel" light goes on and the fuel gauge indicator goes from full to empty after we fill the gas tank--whether driving or idling. The problem seems to end when the gas tank is about 3/4 full.



    Around the time this problem erupted, we had a "dirty fuel" problem and had to replace the fuel filter and clean out the fuel system. Maybe the fuel level sensor floater thing in the tank is also dirty.

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  • Posted on Nov 19, 2008
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You might wanna check the contact on the floater i had that problem so i just bent the contacts closer and that worked for me

  • Anonymous Jan 14, 2009

    it is in the fuel tank should be hooked up to the fuel pump

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Anonymous

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  • Posted on Apr 17, 2009

SOURCE: Fuel Gauge Not Reading

sounds like the float isnt sitting proplery in the tank

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I hope this helps! :)
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Fuel gauge
Well, your fuel gauge can be stuck at the 3/4 mark. Or you bent it while installing it, causing a wrong reading.

Take out the fuel pump and ensure when the float is at the empty position your gauge is at E. If not adjust it properly. Also make sure your connections are correct. You said you swith the wires, don't see how they only go one way unless you have the nut and screw type.

Again, I think you bent it while installing it.. Also make sure you put the pump in correctly, you could have installed it the wrong way not letting the float ..............float!
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Is it true that I can reset the fuel gauge after replacement of fuel pump by disdisconnecting power for a while so it resets itself?

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