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Fuel gauge always reads full 444-544 1963

uid 4846's pic
posted by  JohnMc on  Mon Mar 17 09:25 CST 2003
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last visit: Thu Oct 23 07:42 CST 2014
[RELATED]

If the gauge returns to empty with the key off then the problem probably lies in the sendaer on top of the tank (trunk floor). The gauge grounds through the varying resistance of the sender. So if the wire is inadvertantly grounded somewhere or the sender has developed a short somehow it will always get a full ground and read full. Try unhooking the wire from the sender and see if it reads empty. If if still reads full there is probably some short on the wire somewhere between the tank and the gauge. If it reads empty (and nothing looked funny with the way the wire was hooked to the sender - i.e. it should be insulated and isolated to the sender terminal) then take out the sender and give it a look. Be careful about sparks around gas vapors.






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