My gas gauge is acting wacky. Gauge will read empty?

I hope this makes sense, its a little hard to explain! Normally when the car shuts off the gauge goes down to empty, then up to the proper fuel level when starting. The gauge is not going down to empty, it stays wherever it is at - and when the car is started, it raises the needed however much depending on how much fuel is in the car. There is no "stopper" at the "full" indicator, so the needle goes way past the “full” mark. This then gets in the way of the temperature gauge � which then does the same thing, and gets in the way of the speedometer. I hope I've explained this clearly, I'm definitely not a car person. Thanks

I have the exact same problem with my 2005 Chevy Cavalier. The gas guage reads there is more gas in it than there really is, and it turns all the way, blocking the temp guage. To fix this, the entire dash ash to be removed so the flawed guage can be replaced, and this is expensive. A mechanic told be that this is a common problem with the year, make and model of ny car, and that the manufacturer knows of this defect and yet sold them with these problems anyhow. The problem can cause me to run out of gas since there is no accurate reading of how much gas is in the tank. And because it moves over into the rtempurature guage and blocks the temp guage from providing an accurate reading, I'm afraid the car could overheat and the problems with the guagecan cause this. I'm also afraid of running out of gas.
I'd like to to if Chevrolet has a recall for thisproblem and will fix it since it can be dangerous. Does anyone know if Chevy is taking responsibility for this, and if they will fix my guage problem since they knew about it and produced the vehicles anyway? Is there a site I can go to that will help me this, or does Chevy have a department that deals with this issue of neglagence?

You can send the instrument panel away and have the stepper motors relaced. I had the same problem with my 2005 cavalier and I found a guy in Minnesota via E-Bay that fixes your instrument panel for $60. It works as good as new. It took less than a week from shipment to being delivered to my home.

LemonaideMike what is the address or phone Number of the guy you sent your cavalier dash unit to?

Sometimes when I fill up with gas- a day later my gas gage will go past Full- I am always careful not to over fill my tank, but it still happens occassionally. The Check engine light is also on- when I had the car put on a computer I was told that it had to do with my gas cap and that I should replace it. I was also told to make sure I let the gas cap click 3 times when putting it on after filling up. Replacing the gas cap and making sure I made the cap click 3 times did not work. I was also told that maybe I needed replace the fuel filter.

Gage reads full when the tank is full. As the fuel is consumed the gage is correct. Until it reaches halfway then the gage reading starts to increase until it reaches full again then the car is out of gas. Is it the sending unit, the float, the fuel gage, or the tank pressure sensor?

My fuel gauge only registers from 1/2 a tank to full, but if it gets below 1/2 a tank of gas the gauge seems to go crazy. Do I need to replace the sending unit in the gas tank? How do I get to it?

The eratic behavior of your fuel gauge may be a software glitch. Check with the techll guru at your GM dealer if there is an update reprogram for the PCM on your car. To replace the fuel sender you will have to drop the fuel tank and with that many miles on your car it would be wise to replace fuel pump while you have the fuel tank on the ground. Make sure its almost empty when you do it, it'll be a lot easier. Be careful and dont smoke while your doing it!
LOL,
BILLybob

Fuel gauge is pegged to full most of the time. When fuel level is low then it works. Sometimes gives correct level.