Hi I have a 2000 Silverado with the gas guage that moves alot. I am wondering if it is a ground or the the fuel level sensor inside the tank.
Symptoms:
When in park the guage moves between full and empty (also between full and a half) then when i put the truck in drive the guage will move to what seems to be its normal position. The guage moves when going up or down hills and sometimes around turns. Sometimes when I fill the truck up it will mark empty for the first couple of Kms on the highway.
When I am stopped at traffic lights for too long with my foot on the break, you can see the gas guage slowly making its way towards the full mark.
Questions:
How hard is it to test if it is the ground wire? Can I just run another ground into the one that is there? If I have to take down the tank how hard of job is it? Can the fuel sensor be changed without changing any other parts?
Note:
I did not look under truck yet to see where everything is located.
thanks for any information