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1978 Ford F250 fuel gauge?
I was recently given a 1978 F250 and most of the gauges did not work. After replacing them all, the fuel gauge was the last one that didn't work. I checked the gauge and the sender and they're both good so I ran a new wire from the sender to the gauge and from the gauge to the ignition switch. It reads about 3/4 and I've put maybe 20 miles on it and it's still the same. It also moves up towards full when I step on the gas pedal. The sender is grounded at the tank, the wire runs up and connects to one post on the gauge, the other post has a wire going straight into a switched 12v lead. Is this the proper way of wiring or is there something in between that I missed/don't know about? I would take gas out but have nothing to do so with and nothing to put it in and I can't afford any more gas for it at the moment so I can't test it that way. Thanks for the help.
3 Answers
- Old Man DirtLv 79 years agoFavorite Answer
The correct way to wire this system is from the switched lead to the gage then to the sender. The sender is grounded. So if I understand you, it is wired correctly.
If the float is not hanging, and there are no other problems, it should work. 20 miles is not very far on a 25 gallon tank.
- ?Lv 45 years ago
your difficulty has many available motives .come across the gas sender unit {oftentimes on the stunning of the gas tank} examine if there is any wires related if no longer attempt and come across them. if there is disconnect the only in the centre and attempt shorting to earth if the gauge is going up the sender is defective if no longer available broken twine and or fuse. or you would be able to desire to take it to an motor vehicle electrician to fault locate and restoration.
