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Old 01-24-2004, 09:11 PM   #1
doughby82
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what causes this????

when i turn the headlights on the fuel gauge will read empty?any ideas
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Old 01-24-2004, 09:31 PM   #2
gonebad2
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I would check some gounds. Always seems when somethimg weird is going on with the wiring, it almost allways points to a ground. I would check to see if the headlight switch is grounded good and check the instrument panel too.
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Old 01-24-2004, 11:28 PM   #3
Blue Beard
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I had one truck that had the fuel wire spliced into the tail light circuit.......
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Old 01-24-2004, 11:36 PM   #4
1972C10
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You need a headlight switch that gets better gas mileage

The fuel gauge works off ground the more its grounded the more it registers


Might try a good ground from battery to frame a good ground from tank to frame and another from rear crossmember on the bed to frame i find that there is no such thing as too many grounds.
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Old 01-25-2004, 01:51 AM   #5
Longhorn Man
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You need to ground the inst panel.
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Old 02-11-2004, 03:03 AM   #6
71-longbed
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where is the ground for the instrument panel located ???
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Old 02-11-2004, 03:37 AM   #7
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Just find a screw easy to get to and run a wire from it to a screw on your dash.
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