Gas Gauge is pretty screwed...

[RustBuket]

Ok, so I put a hole in my tank and had to drop it/repair it/reinstall. After the reinstallation, the gas gauge is acting really weird. It jumps up to about the 3 oclock position sometimes and everytime I start my truck up I get a different reading so I don't know which is right! What wire did I not connect right? The red one that goes to the sender on top? Or is there another wire that I just didn't see all together? A ground maybe? /forums/images/graemlins/1zhelp.gif

 

[rcpilot]

There is a ground that needs to be connected...it usually runs from the frame/crossmember in front of the tank to the ground tab on the sending unit.. if ya only hooked up opne wire then ya missed one...

 

[RustBuket]

Well then that is most likely my problem. And i bet the whats happening is the ground is bouncing off the tank and sort of making connections sometimes giving me the messed gauge...

 

[RustBuket]

Do I have to drop the tank to reattach the ground wire?

 

[RustBuket]

TTT

 

[shaun]

Pleaselet me know if that helps b/c i bought a 90 jimmy and it does the same thing. Sometimes it wont move sometimes it will. It jumps around to. And it moves every time I restart the truck. WTF??? /forums/images/graemlins/eek.gif

 

[husurddy]

I had the same problem but it wasn't a wire. Mine turned out to be the plastic tub in the tank had come undone and was hitting my sending unit. Before I fixed it I would hear a slight banging noise in the tank when I first came to a stop. I used gas tank sealer on the nuts that press down and hold the tub in place and has worked great for two years.