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Generation 1 1948-1952 F1 thru F8

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Old 06-26-2018, 06:37 PM
old yella old yella is offline
Join Date: May 2018
Posts: 22
old yella is on a distinguished road
fuel guage

Okay, I have my truck running really good now , just tuned it up. I do however have a small problem, the gas guage. It always reads full, I checked the sending unit by taking off the wire and grounding it and it then goes to empty. There is only one wire on it so I assume the tank is grounded to the chassis. I put a test ground wire to the sending unit but it did not change a thing. It reads 66 ohms which is about right for a 3/4 tank full of gas which I believe it has. when I take the wire off the sending unit the guage goes past full if I don't ground it. So how do I test the guage and what am I doing wrong ? Thanks
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