Gas gauge problems

plymouth71 said

I was told by napa to test the sender wire by grounding it to frame,should move the gauge to full,

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If you ground the sender wire removed from the sender to ground (chassis, frame etc) you should peg the gauge (doing so for more than a few moments can fry the gauge)

plymouth71 said

then to plug sender back up and use same test wire to ground sending unit to body,if the gauge moved then the grounding strap at tank needed to be removed and all contact points be cleaned and re-installed

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If you use the test wire from sender body to ground (chassis, frame etc) and the guage moves (assuming you have enough fuel in the tank) then that indicates you don't have a good ground from tank to ground (chassis, frame etc)




You do have fuel in the tank? like 1/2 tank?