I have replaced the instrument cluster and the fuel gauge stills goes to the right. Some have suggested that a ground is an issue. So where is the ground for the fuel gauge. I have no manual to repair this problem. ::

I have replaced the instrument cluster and the fuel gauge stills goes to the right. Some have suggested that a ground is an issue. So where is the ground for the fuel gauge. I have no manual to repair this problem. ::

The sending unit grounds to the tank whitch is grounded by the attaching bolts. If the guage goes to full it's because of an open in the circuit. Unless it's really full.

Jim

Slide the seat forward all the way, look down to the tank back there, you'll see a brown wire hooked up to it. (If not, you found the problem) follow that wire to the fuse box.... a punch in the gut says it is corroded and/or broke in two under the chrome strip (thresh hold?) by the door.

I have removed the brown wire and tried to jump it with a new wire still no response with the gauge.

I have the opposite problem. My gauge goes to the left (empty) and this isn't a bad mileage issue. I have replaced the sender and the problem remains. When I remove the wire to the sender (brown wire mentioned in the previous posts) the gauge pegs to the right. I am believeing that rsp1971's problem is a bad ground from the tank to the cab or cab to frame. Try running a wire directly from the tank (bare metal) to the frame (also bare metal) and you should see some gauge movement if a ground is the problem.

What would be the opposite of that? Am I getting an errant current from somewhere else? I am having dash light issues when I turn on the headlights, but the gas gauge is an all the time issue.

Budbeater

Have you took out your gauge panel from dash and looked at the contact board that sends electricity troughout your light and gauges I have seen breaks in the flat copper.I would give that a try.You can replace that.Good luck.

The sending unit grounds to the tank whitch is grounded by the attaching bolts. If the guage goes to full it's because of an open in the circuit. Unless it's really full.

Jim
i jump the sending unit with a new wire no response from gage. while i had the wire connected i took another wire grounded it to the body. now the gage goes back to emptywhats wrong

If you can ground the wire going to the sending unit and the guage goes to empty, the guage is most likly ok.

Use a test light to insure the tank is in fact grounded,as well as the sending unit. If they are the sending unit is the problem.

Jim