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| | | | Joined: Jan 2010 Posts: 45 'Bolter | | 'Bolter Joined: Jan 2010 Posts: 45 | Hi. I recently replaced my fuel tank and sender. 62 K-20, with a 235. Problem s that the gauge never reads full, even when the tank is full. Only goes to about 3/4 max. Also, the gauge is jumpy when the level in the tank goes down. The gauge checks out ok, it reads full when you disconnect the wire from the sender, empty when you ground it. Possibly a bad sender or, the resistance range is off? Any ideas? Appreciate your help. | | | | | Joined: Jul 2001 Posts: 3,887 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Jul 2001 Posts: 3,887 | not reading full can be fixed by bending the float arm a bit until you get it right, providing the problem isn't in the gauge itself - jumpy suggests you may have a poor ground or got a faulty sender
Bill | | | | | Joined: Oct 2010 Posts: 40 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2010 Posts: 40 | Hi. I recently replaced my fuel tank and sender. 62 K-20, with a 235. Problem s that the gauge never reads full, even when the tank is full. Only goes to about 3/4 max. Also, the gauge is jumpy when the level in the tank goes down. The gauge checks out ok, it reads full when you disconnect the wire from the sender, empty when you ground it. Possibly a bad sender or, the resistance range is off? Any ideas? Appreciate your help. don't feel so all alone pizon,my 66 c-10 reads 1/2 full when in fact the tank is topped off. so I've just lived w/ it that way for years never being able to figure it out on my own.i like squeeze's idea of bending the float arm. | | | | | Joined: Nov 2010 Posts: 6 New Guy | | New Guy Joined: Nov 2010 Posts: 6 | I have a 66 GMC that had the same problem and I bent the float arm on it, works fine now. | | | | | Joined: Jan 2010 Posts: 45 'Bolter | | 'Bolter Joined: Jan 2010 Posts: 45 | Thanks for the advice. I think I will pull the sender, and see if I can make it read full by moving the arm. IF I can, it probably means that i just have to get the right bend on it. | | |
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