Gas gauge issues

I have 97' GTP that is having gas gauge issues. The gas gauge will slowly go up to full when it is being driven. Sometimes it will show the right amount after you turn the car off and back on. Help please

It sounds like you have a flaky fuel level sending unit and float. It is part of the fuel pump assembly.

Is the fuel level unit inside the gas tank or do you just have to pull your fuel pump.

Is the fuel level unit inside the gas tank or do you just have to pull your fuel pump.

Yes, it is integrated in with the fuel pump pod. Fuel pump assembly can be removed without dropping the gas tank. There is an access cover behind the rear passenger seat in the trunk. See pic below.

http://i5.photobucket.com/albums/y186/lizzywiz/fuelsender.jpg
Fuel Pump Assembly with Fuel Level Sending Unit/Float

yea my 2001 Grand Prix, has a gas gauge that dont work......My family is in the Auto Body business so my dads putting a new sending unit in soon froma another Totaled Grand Prix from shop!