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2001 CHEVY IMPALA GAS GAGE goes to full when key is turned on after about 10 seconds it clicks to empty,tank is full sokol520@comcast.net or call 412 798 0931

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  • sokol520 Apr 15, 2009

    when key is turned on it goes to full for about 10 seconds you hear a click goes to empty message says low on fuel tank is full

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The gas guage on your tank is worn out that's why when he hits the higher surface he go back to empty replace it.

Posted on Apr 15, 2009

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  • 39 Answers

You have a bad float in the gas tank, have it replaced..there is no shortcut.

Posted on Apr 18, 2009

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SOURCE: 2001 chevy impala gas gage does not work right

sokol520--Sounds like fuel pump/fuel guage sending unit. They are integrated and located inside the fuel tank, most likely.

Posted on May 05, 2009

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2001 chevy impala gas gage probiem, when you turn key on gage goes to full then to empty hear a click tank is full


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I have a 94 chevy s10 and my gas reads empty while i drive.but when i shut off the truck the gauge moves to different readings.


Is......the problem--"the gas gage reads empty when there is fuel in the tank. OR, The gage moves when the key to turned off ?

If it's the first,
You will need to test the gage and through process of elimination, determin if the Sending unit inside the fuel tank has gone Bad.

If its the second ? - Electrical gauges will move when powered down. Normal

Testing the gauge may not be easy - just depends on your ability.
It is a simple 2-wire gauge circuit, when disconnect (usually need the fuel tank) the gage reads in one direction (either full or empty)
then when shorted-the gage reads in oppisite direction.

Of course you must select the correct wires or you may short out the wrong circuits!! Most GM vehicles use a purple wire & black wire.

A quick method I have used to check the in-take part of the gauge is this.
1st. know there is gas - 1/2 tank works best.
2nd driver's door open, key in run position, engine not running.
3rd gently lift up on the door then let if come back down, gently.
just enough to cause the gas to slosh around.
4th - keep an eye on the gas gage, a bad sending unit in the take will show up as a "twitchy" needle.

Of course, if the gage never leaves empty - sloshing won't work.
I have a known good sending unit I can plug into the vehicle and simulate different levels of fuel - if the gas gage works, I know the problem is in the tank.

Let us know.

Dave

Feb 28, 2009 | 1996 GMC Sonoma

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