Gas Gauge [Archive] - Forum


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07-14-2010, 08:00 PM
Anyone had a gas gauge that when you first start it up it seems to be reading correctly but as you drive it goes up to full? Help! Thanks to any insite!

07-14-2010, 08:06 PM
Bad sending unit on the pump. Very common.

07-14-2010, 08:09 PM
Yuck, that figures, I assume this is a tank drop operation?

07-14-2010, 08:19 PM
Fuel level sensor. Part is like $115 i think.
Your gonna need someone to drop your fuel tank, so dont fill up on gas
before you get it done because it will be a pain.

07-15-2010, 10:42 AM
Will drop it myself, and 10-4 on the let it get low first.............. appreciate the input

07-15-2010, 11:05 AM
I was wondering why mine did that sometimes - if its intermittent I would wait till it totally fails if you don't have the funds.

Empty the tank, be WELL ventilated, it may have a snap ring holding it in I know GMC has them so have the right tool - And report back is you needed any tools.

Might as well change the fuel filter while you back there and under it - I assume your on a list and not on stands.

07-15-2010, 12:15 PM
mine is a bad fuel level sensor it reads great for the first 1/2 tank lol