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| | | | Joined: Aug 2007 Posts: 33 Apprentice | | Apprentice Joined: Aug 2007 Posts: 33 | My 1952 GMC gauge remains on full with key on. With key off reurns to empty. I took the sending unit wire off the tank and the fuel gauge(KEY ON)WENT TO A LITTLE ABOVE EMPTY ...RIGHT WHERE IT SHOULD BE. WHADDA guys think? bad ground? Terry1218
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Terry A. Dudash | | | | | Joined: Apr 2004 Posts: 11 Junior Member | | Junior Member Joined: Apr 2004 Posts: 11 | i've found that most problems are caused by bad grounds. | | | | | Joined: Dec 2005 Posts: 324 Member | | Member Joined: Dec 2005 Posts: 324 | Bad sender, which could be only a bad ground. Try a ground wire from the sender to a good ground. When i trouble shoot for grounds i take a jumper to the neg battery. Also seems like your gauge is not accurate. With wire off the sender should read empty, ground the wire and you should read full.
"It ain't a truck if you can't hose out the cab."
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