Fuel Guage quit working
Postmaster
Joined: Aug 2000
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From: Eldorado Ca. USA
Try manually searching the pages, this was covered about a week ago. Also try reading the sticky that says "Read First: 1973-1979: FAQ's, Tips & Tricks, Projects, and FORUM INFORMATION, -PLEASE READ!"
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Joined: Mar 2006
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Could be the sending unit in the tank. It could be working electricly but the float may have a hole in it. This happened to me. The float is attached by a wire arm the raps around a brass "barrel". Mine wore out where they come in contact with each other. Believe it or not I wrapped electrical tape around it as a temp. fix and its still working about 2 1/2 years later.
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Joined: Jan 2008
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New User
Joined: Sep 2007
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From: By Truman Lake
Quick test to determine problem
Get under the truck and locate the wire that goes to the sending unit, unplug it and ground it out to the truck body. Make sure its a good ground. Turn on the ignition key. The fuel gauge should quickly rise to FULL. This tells you the gauge and wiring to the gauge is functional. You may also use an ohm meter to test the sending unit. Attach one end to a good ground and the other to the sending unit wire. No reading - bad unit. By bouncing the truck with fuel in the tank, if the unit is good you will see the meter reading fluxuate.
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New User
Joined: Jun 2007
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Thanks but I was a little vague last night...
The PO told me that one day the gauge lights on the left side of the cluster went out and the fuel gauge quit working.
The truck has dual tanks and it quit working for both tanks so I am pretty positive that it cant be the sending unit as both would have had to go out at exactly the same time.
The PO told me that one day the gauge lights on the left side of the cluster went out and the fuel gauge quit working.
The truck has dual tanks and it quit working for both tanks so I am pretty positive that it cant be the sending unit as both would have had to go out at exactly the same time.
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Joined: Jan 2008
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The two sytems are unrelated.
Please NOTE: There is PLENTY of info in the links I posted earlier (post #4) to solve your fuel gauge problem.
Since you also have cluster light problems.
You need to pull the cluster and disassemble it and clean the printed circuit as the contacts get corroded .
see this pic.
Please NOTE: There is PLENTY of info in the links I posted earlier (post #4) to solve your fuel gauge problem.
Since you also have cluster light problems.
You need to pull the cluster and disassemble it and clean the printed circuit as the contacts get corroded .
see this pic.
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New User
Joined: Jun 2007
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Thanks guys...
rear tank, ground wire broken and aux tank had a badly corroded terminal... both work now.
rear tank, ground wire broken and aux tank had a badly corroded terminal... both work now.
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