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My fuel gauge in my car is stuck on full even though the car only has about 1/2 tank of gas left. Why is this happening?

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The sending unit is "open" ,u need a new one or the wires are disconnected.

Posted on Dec 30, 2010

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1 Answer

Why is my fuel gauge stuck on full even though there is only 50% of petrol in the petrol tank


Hi,it must be that the gauge or sender unit are faulty,check sender unit first.

Apr 09, 2016 | Cars & Trucks

4 Answers

Why does my gas gauge read half full when its empty.


it will help if you tell us what kind of car it is and dose this problem happen after you fill it while the car is running or is it off ?

Feb 02, 2015 | Cars & Trucks

1 Answer

Fuel Gauge wont move past 3/4 tank even with full tank


There is no easy fix.
Either the gauge on the dash is faulty, or the sending unit in the tank.
The sending unit uses a float which may be getting stuck at the 3/4 mark.

Jan 28, 2013 | 1995 Mercury Mystique

1 Answer

I have a Hyundai Elantra 2001. The low fuel light came on and won't go off even though the car if full of gas.


If gauge still shows empty and light is on then inside tank there is a arm thats prob just stuck remove lower rear seat and will see entry to tank gauge has about 3 to 4 screws open and check if arm is down or floating .

Mar 19, 2012 | 2001 Hyundai Elantra

1 Answer

My BMW X1 shut off in the middle of the road eventhough it had a 1/4 tank of petrol left. BMW suggested I fill it up with petrol and it started again. I am left confused as to why that happened...


The fuel sender unit could be faulty. It says 1/4 tank even though it is almost empty. Carry a jerry can of gas in the back , and run it down to 1/4 or less to see if the problem repeats itself.
The gas guage and trip computer are only as accurate as the float in the tank.

Feb 08, 2011 | 2011 BMW X1

1 Answer

My gas gauge does not work even though the gas tank was replaced


The gas tank has nothing to do with the gauge. The fuel pump float could be stuck or the slide could have been bent when the pump was put back in. Also, the electrical connector could be unplugged or sot fully connected. This happens when someone pulls the wire instead of the plug.

Sep 03, 2010 | 1996 Jeep Cherokee Sport

2 Answers

I have a 2000 Grand Prix SE and car specs say that it has a 68 liter gas tank. I converted that into gallons, and its about 17.8 gallons. when i refueled, the gas pump only said it put in 12 gallons when...


make sure you fuel tank float isn't becoming saturated with gasoline. If the gauge reads full when it is indeed full, you probably don't have a short in the wire that goes to your fuel float sending unit. If that wire is bare and shorts out it will say you tank is empty since it works on resistance open or unplugged the gauge would read full, closed is or going to ground the gauge will read empty. I would think the float might be bad or the float arm got stuck down when you turned a sharp corner. I had one of these cars but I don't remember exactly where the fuel level sending unit is located and if you need to remove the fuel tank to gain access to the sending unit. I hope this helps you

Mar 09, 2010 | 2000 Pontiac Grand Prix

2 Answers

I installed a new fule pump & now my gas gauge is stuck on full. How can i make my fule gauge register correctley


If your fuel pump is an in tank one then you have probably got the float stuck when you put it in the tank.
Let me know if this is the prob.

Jun 28, 2009 | 1996 Ford Windstar

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