Fuel guage fluctuations
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New User
Joined: Dec 2011
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Fuel guage fluctuations
In my 1987 diesel, both fuel gauges fluctuate - go high and then low within seconds. I had an 86 Taurus that acted the same way. When the fuel pump in the Taurus failed, I replaced the pump and the gauge acted properly from then on.
Is this a common problem on the '86 and '87 Fords? Is it the wiper blade losing contact with the rheostat?
I sure don't want to drop both tanks to correct this problem.
Is this a common problem on the '86 and '87 Fords? Is it the wiper blade losing contact with the rheostat?
I sure don't want to drop both tanks to correct this problem.
Mountain Pass
Joined: Nov 2005
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could also be a wiring problem. Usually would be at a certain level, say 3/4 of a tank it may have a bad spot and drop to E if it is the sending units. If you are at 1/2 or what ever and then goes F then E it may be another problem.
Hotshot
Joined: Sep 2001
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The fuel gauge can fluctuate a little especially when its about half a tank or less, due to fuel sloshing in the tank. This usually occurs when stopping.
If it does this while sitting still, I would suspect a wiring issue or a bad sending unit.
If it does this while sitting still, I would suspect a wiring issue or a bad sending unit.
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Thus my question: Was this a common problem with Fords of this vintage and, if so, is there a solution without replacing the fuel pumps?
Apparently it was not a common problem or there would be a lot more responses to this thread.
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