Quote:
Originally Posted by 1970cstblazer
GM tanks are 0-90 Ohm resistance. When you ground the wire for the tank unit, the gauge should read empty. At 90 ohms, the gauge will read full. Disconnected, that is infinite resistance, so the gauge should max out past full. I would test the tank unit to verify resistance values.
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So here’s what I found my problem to be. The way that the sending unit is “clocked” to lock into the tank caused it to hit a tank baffle ever so slightly so it won’t go all the way to the bottom. Do I need a different sender?
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