How do you repair a fuel gauge of a 1978 F-150 that stays on empty?
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Answer

Check out the wire going to the tank. If ok, the float may have sunk.

Answer

If the wiring to the sending unit is ok the float probably has a hole in it if the truck sat for a long time the float may have rusted...

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First answer by Joe Johns. Last edit by Philip Norris. Question popularity: 87 [recommend question]

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