My problem is a little different. I purchased a new 12v gauge and sending unit. Tested it before installation in the tank and the gauge worked perfectly. Once installed in the truck it will only show 2/3 full when completely full. Empty seems to work fine. I confirmed this one time when it showed just past the empty mark and I ran out of gas.
It seems like I should be able to bend the float arm down slightly to get a more accurate full reading but that would probably be trial and error for the correct amount of bending. More importantly, I don't want to mess up the accurate empty reading. Anyone else dealt with this and solved it adequately?
