fuel gauge stuck on full - Ford Powerstroke Diesel Forum
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post #1 of 12 Old 09-09-2012, 09:47 AM Thread Starter
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Exclamation fuel gauge stuck on full

Well my fuel gauge is stuck on full i dropped the tank thinking float was stuck but it wasnt i turned the key on moving the float up and down and the gauge still read full anyone have any info to help me before i buy another unit?

2000 F350 CC Dually--sold

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post #2 of 12 Old 09-09-2012, 10:00 AM
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Other than ohming out the wiring harness going to the guage, and then ohming out the connector on the float assembly, and looking for a change when you move the float up and down, then id say the sending unit is bad. I don't know what the float is supposed to ohm out at, but you should be seeing a big change in reading

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post #3 of 12 Old 09-09-2012, 10:01 AM
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Mine always stuck on empty ha. Sounds like float is stuck mine does it every once in a wile

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post #4 of 12 Old 09-09-2012, 10:09 AM Thread Starter
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I was afraid the unit was bad lol got a salvage yard near by guess ill see if they have one i can try hopefully it fixes it

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post #5 of 12 Old 09-09-2012, 10:38 AM Thread Starter
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I unplugged the sending unit and it still reads full as well

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post #6 of 12 Old 09-09-2012, 10:40 AM
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Make sure u have ground on the sending unit

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post #7 of 12 Old 09-09-2012, 10:44 AM Thread Starter
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Where is it grounded

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post #8 of 12 Old 09-09-2012, 11:21 AM Thread Starter
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Bump found the yellow/white wire split in 2 put it back together but still stuck on full....

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post #9 of 12 Old 09-10-2012, 10:39 AM Thread Starter
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well messing with it again today i got the gauge to work when moving the float around but as soon as its put back in the tank it goes back to reading full again...

also i just unplugged the terminals to see if maybe it will reset itself

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post #10 of 12 Old 09-10-2012, 11:09 AM Thread Starter
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bump......

2000 F350 CC Dually--sold

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