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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Mar 2005 Posts: 1,636 'Bolter | | 'Bolter Joined: Mar 2005 Posts: 1,636 | When you take the jumper wire and go from the stud to ground you are bypassing the sender inside. You won't get an accurate reading of what is in the tank because the resister inside the tank is no longer part of the circuit. Eventually the gauge would go to empty doing that.
Sounds like you have located the problem, the sending unit inside the tank is not working. Now to pull it and see why.
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