Gas gauge not working.
Thread Starter
Heel & Toe
Joined: May 2009
Posts: 15
Likes: 0
Gas gauge not working.
My 78 has a gas gauge problem. The other gauges are working except the gas. It is pegged all the way to the right. I pulled the bezel out. The gauge power is still plugged in the back. I put jumper wires from the installed gauge to another gas gauge I had. It pegged also when I turned the key. This happened to a second gas test gauge also. I immediately think it’s the float in the tank. Any suggestions?
Curt
Curt
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
All the way to the right or full usually means you have an open circuit between the gauge and the tank sender or the tank sender is not grounded.
Go back to the tank and remove the wire from the sender and then ground it-gauge should go to empty. Let us know what happens.
Go back to the tank and remove the wire from the sender and then ground it-gauge should go to empty. Let us know what happens.
Drifting
Joined: Sep 2004
Posts: 1,270
Likes: 4
From: Celeste Texas
Go to the willcox website. They have a troubleshooting area that has help for fuel gauges. step by step stuff. When you end up at Radio Shack trying to buy a resistor be nice to the kid behind the counter and go look in the big gray bins yourself. It's about $3 for the resistors and the tiny ring terminal ends. The new resistor you are about to make won't fit between the studs on the gauge so you have to make a big "C" with it. I soldered it together because the leads on the resitor are much smaller than the wire hole in that tiny terminal and used heat shrink sleeves on the ends.
Bill
Bill
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
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