Fuel gauge problem
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Cross-Country
Joined: Nov 2021
Posts: 70
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From: East Haddam CT
Fuel gauge problem
Just got restored 49 F1 with aftermarket instrument dash gauge panel. Everything works except for fuel gauge. It only moves from empty to a little less than 1/4 full when when start it up. I know its not working cause the tank is full. Could it be a fuse or maybe the ascending unit? Thanks Bob
Parts Nerd Extraordinaire
Joined: Sep 2010
Posts: 4,381
Likes: 1,791
From: Western NY
Some of the "gotcha" type things to check (in no particular order):
- That the fuel gauge and sending unit "speak the same language". Most aftermarket units are resistance/ohm based, where the stock system is King-Sealy based. Even aftermarket parts that use the ohm/resistance model must also use the same resistance->reading translations. Maybe only the cluster was changed over and the fuel sending unit was not?
- That the sending unit is properly grounded. Can't hurt to add a good ground wire to one of the mounting screws with a ring terminal.
- Flooded sending unit float
Cargo Master
Joined: Sep 2004
Posts: 2,757
Likes: 138
From: Alberta Canada
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