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My fuel gauge doesn't move at all even if am full

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2000 Pontiac Montana gas gauge stays on full and doesn't move the only time I've seen it moved was when the front of the van was jacked up what could be the problem?


Probably a bad sending unit in the tank,or maybe a broken tank baffle.(Either way,you're looking at taking out the tank to find out.

Apr 14, 2013 | 2000 Pontiac Montana

2 Answers

Gas, fuel, and temp gauge doesn't work


You have blown a fuse..check fuse box. There may be one fuse box one in the cabin but also check for the fusebox in the engine compartment.

Oct 04, 2017 | 1992 Dodge Caravan

1 Answer

Fuel gage stuck on full


Either there is a short in the fuel sender wiring or the sender in the tank is bad.The actual gauge is rarely bad.Good luck.


Else
The float affixed to your fuel pump in your gas tank is stuck.

It tells the dash you ALWAYS have a full tank.
You have to drop the tank, PB Blast/WD40 the float, get it to drop down.
Finally
Your unit in the tank is bad. Pull it out and move it up and down while someone looks at the gauge. If doesn't work, buy a new one. They are not that expensive.

Apr 25, 2012 | Cars & Trucks

1 Answer

Fuel gauge sensor


Yes, the sending unit is in the tank. If you unplug the connector at the tank and ground the gauge's sender unit wire to metal, with key on, the dash gauge should jump to full or near full. This verifies the dash gauge is working properly, and the problem is with the sender unit in the tank. If the gauge doesn't move when grounded, then the gauge or wiring from tank to gauge is not correct.
Good luck.

Jan 24, 2012 | 1988 Jeep Wrangler

1 Answer

Gas gauge


Guess I'd have to see your gauge to understand what you mean by it turns in a circle. If the gauge is bad you will have to remove the instrument cluster to access it.
If you ground the fuel guage sender wire from the tank's sender unit you can determine whether the gauge itself or the sender unit in the tank is bad.Here's how: Unplug connector at tank. Locate the right wire (gauge sender wire) in the connector and jumper it to a good ground. Observe dash gauge when you turn key to on. If the gauge is good it will move up to half or full when grounded. Then problem is likely the sender unit in tank. But if gauge doesn't move, then it's likely the gauge itself.
Good luck.

Nov 20, 2011 | 1997 Chevrolet Tahoe

2 Answers

I have a 2003 GMC Envoy and my gas gauge has been flowing up and down to empty and full recently it has stayed on empty. How do I fix it?


Ensure that all of the wire connections are clean, secure and corrosion-free.

  • 2 Check your fuel gauge fuse if the gauge's indicator stays on empty when your turn on the ignition. If the fuse is good, join the sending unit connector to ground. Replace the sending unit if the gauge indictor moves to the full line.
  • 3 Ground the terminal located on the back of the fuel gauge with a jumper wire if the indicator doesn't move. If it does move, consider replacing the wire between the fuel gauge and the sending unit. A poor ground is frequently responsible for fuel gauge problems.
  • 4 Release the wire that connects to the fuel tank's sending unit. Confirm that there's no worn insulation that would permit wire contact to the body or frame. A fuel gauge reading of full generally indicates a problem with the tank unit, not the wiring.
  • Oct 18, 2011 | 2003 GMC Envoy

    1 Answer

    My 97 S-10 Blazer fuel guage wont work


    Likely, it's the sender unit in the tank. To check wiring and your dash gauge, you can pull apart the connector at the fuel tank, find the wire for the gauge sender unit (its color coded-I dont kinow what the one for your car would be), and on the harness side(the one going to front of vehicle) use a jumper wire and ground that wire to the car frame(get me? you want to ground the wire going to your dash gauge)-with key on, your gauge working properly will move up to half-way or even full. That tells you your dash gauge is working and your wiring to gauge is good. If gauge doesn't move when grounded(double check for a good ground), then your dash gauge may be bad.

    Oct 12, 2011 | 1997 Chevrolet Blazer

    1 Answer

    Fuel gauge not working properly. Says fuel tank full when fuel tank empty


    Could be 3 thing - the gauge on the dash, the wiring or the fuel level indicator in the tank. All three are not easily accessible - the best test would be to measure the voltage on the level sensor on the tank.

    It usually means removing the fuel tank and start measuring. If its ok, supply voltage to the lead towards the fuel gauge. If the gauge doesn't move it's wiring or the fuel gauge itself.

    Jun 26, 2011 | 1999 Cadillac DeVille

    1 Answer

    Fuel gauge doesn't move despite milage driven and digital readout for miles left to fill fluctuates up and down. Dealers' computer says all normal with car but I've driven over 175 miles on...


    This is the fuel level sender, I can't umderstand why an Audi specialist would even think why its computer related... I worked for Audi/ VW for three years and that doesn't make sense. You can find the fuel level sender under a panel that is located under the rear seat bench.

    Jun 03, 2011 | 2011 Audi Q5

    1 Answer

    Just bought a '92 plymouth Acclaim with 37000 miles. It's in great shape but I'm not sure if the fuel guage is working. Only drove it home, less than 10 miles. Is the guage mechanical or...


    There's a float inside the tank that the fuel gauge works off of. If you step on the brakes or accelerate hard it causes the gas inside the tank to slosh around and you can see the fuel gauge move when you do this. If you know the vehicle has gas in it, the best way to check if the gauge is bad is to drive around enough to where you should have burnt a noticeable amount of gas. If the gauge doesn't move, then there's something wrong with it.


    Since the gauge moved when you braked hard, I would assume it's working properly because it picked up on the level change inside the tank where the float's at.

    May 19, 2011 | 1992 Plymouth Acclaim

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