Quote:
OK--I ran a solid wire from the neg battery terminal to the sending unit---when I touch it to blue wire get full gage deflection, when hooked up to sending unit with blue wire on sending unit terminal, get 1/2 deflection on gage. This is a 3/8" sending unit with a rally gage. I get the same result with 2 different sending units. What am I missing here??????
Do you have an ohm meter?
The sender is just a rheostat that is adjusted by the float level. If the float is all the way up, the resistance should be very low, just a few ohms, just like when you short it out with ground wire. Disconnect the sender from the circuit and measure the resistance from the blue wire to frame ground. No voltage should be present or it will mess up your meter.
It is unlikely that two senders are bad but it also is not impossible. If you have the original, measure it just for kicks too.
Craig
2014 Ram 1500 Laramie, 73 Cuda
Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango
Only previous Non-Mopar: Schwinn Tornado
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