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Old 10-18-2011, 03:10 AM
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fuel gauge problem

i purchased a set of billet gauges from brothers trucks for my 1949 chevy pick up. for some reason when the ignition switch is turned on the gauge pegs out. i can disconnect the ground and it will not peg out, but will not change when i move the sending unit up and down. the sending unit is new also and it works according to my ohm meter. i got another gauge from brothers and it did the same thing. does anyone have any ideas.


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Old 10-18-2011, 03:56 AM
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I assume you are talking about the fuel gauge...... that being the case, some fuel gauges work by: one side of the guage is hot the other side goes to the sending unit, not ground, the sending unit is grounded...... as the float moves it changes the resistance and the needle moves etc..... There might be a ground on the gauge but that's prob for the illumination in the gauge.
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Old 10-18-2011, 04:59 PM
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fuel gauge

Make sure that you are using a compatible sender for the gauge that you are using.
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