| dean333 | -- 10-03-2022 @ 8:15 AM |
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My fuel gauge worked ok last week, now the needle gradually rises past full while driving and comes back down after shut off. TIM CARLIG This message was edited by dean333 on 10-8-22 @ 12:27 PM
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| fenbach | -- 10-03-2022 @ 7:30 PM |
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tim, y0u up to removing the sender from the tank? check that the float arm isn't stuck at the top, then check the resistance as you move the arm from top to bottom. that is, connect an ohm meter from the post where the wire connects to the base of the sender. the ohm reading should be high when the arm is down and low when it is up. i'm guessing that the arm is stuck at the top or the coil on the sender is shorted somehow. bob
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| dean333 | -- 10-03-2022 @ 9:19 PM |
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What’s the procedure to R & R the unit? TIM CARLIG
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| 51woodie | -- 10-04-2022 @ 7:04 AM |
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I'm not familiar with the '36 Fuel gauge, but if it is like my '46 Coupe, and has a King Seeley fuel sender, the problem may be that the wire to the fuel sender is touching to a ground somewhere between the gauge and the tank sender. Ford designed the gauges to indicate to "fail safe. The temp gauge goes to full hot, the oil pressure goes to zero, and the fuel gauge goes to empty if their respective circuits are interrupted, or if the ignition is not on. If you touch the fuel gauge wire at the tank to a good ground, you will see the fuel gage read full. If you disconnect the wire at the fuel sender and turn the ignition on, the gauge should go to empty, if not, then there is a short to ground. One suggestion, is to disconnect the primary lead to the coil when testing with the ignition on, to prevent possible damage to the coil or points.
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