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If it reads full and you run out of gas, haha Seriously, though, there are really two main reasons why your gauge would be bad. The first, and most common is a bad float/sending unit. The float/sending unit sits in your gas tank, and sends a signal down a wire to your gauge The signal varies in voltage based on how full or empty your tank is. Most of the time, this can only be replaced with a whole module (comes with float, sender [the part that transmits the signal], wiring harness, and fuel pump) at between $150-300, depending on the vehicle. This is all assuming that your vehicle is pretty current. If it is an antique, or collectible it may have a separate sensor that sits in the tank. This is much easier and cheaper to replace, but it may be harder to locate the part for purchase.
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Why is your 84 corvette gas gauge stuck on full?
Sounds like a bad gauge sensor or a bad tank sensor (or both).
93 Chevrolet Gas gauge stays on full?
The gauge, wiring or sending unit is bad.
What would cause the gas gauge not to work on a 1999 GMC Yukon Denali?
The gauge could be bad, the fuel gauge sending unit in the gas tank as part fo the fuel pump could be bad you could have a bad ground wire you could have a broken wire in the harness runnign from the fuel tank to the gauge.
What causes your gas gauge to not work in a 2000 camaro?
A bad sending unit in the gas tank.
What causes a 2004 trailblazer gas gauge to read overfull?
Some gas gauges read overfull when you fill the gas tank because the needle goes past the full mark on the gauge. A bad sending unit,bad level sender, or stepping motor may be the cause of the gas gauge not working properly.
Why does the gas gauge not work in 1998 Chevy Suburban?
Your gauge could be bad but sometimes the floats in the gas tank get holes in them and fill with gas. this causes the float to stay at the bottom and your gauge to read empty. U might also check the wiring from the sender at the fuel tank to the gas gauge itself.
What is the fuel line attached to on the top of fuel pump?
for your gas gauge to tell you when your ride is out or full of gas
Your gas gauge is jumping from full to empty what to do?
fuel sensor in the gas tank is bad or the wires to it are loose or broken.
How do you find fuses for gas gauges 94 dodge spirit?
If your gas gauge isn't working then your gas gauge senging unit is probably bad. This is located in the fuel tank. Depending on the model it is a usually a one piece unit with the fuel pump. It is pretty rare that the gauge actually goess bad. I hope this helps you. Brad
How can you tell what size a gas tank is in a 1986 Ford Bronco XLT gas gauge showed past empty but still ran put 18.5 gals of gas in it and it said full I think sending unit is bad?
It should be a 32 gal. tank
1989 Ford Econoline 350 gas gauge does not move what to do to fix it?
Could be bad gauge or float stuck in fuel tank
What would be wrong with a gas gauge on a 99 Grand Am when it doesn't tell the right amount?
a Bad Gauge, the reostat on the sending unit, a bad ground at the sending unit are the first thoughts that come to mind. Pukenstein@aol.com I don't follow how the battery is relavant as stated below. check the battery aslo...
