1978 f150 with stock 400 motor. This is the 2nd new remanufactured alternator. 2nd new voltage regulator with in a couple months. Output is reading 17 volts at the battery.
Im looking to make a new wire harness but not quite sure its all connected correct. Im confused on which diagram to use. I dont have a voltage gauge inside the truck but there is a gauge that says "Alt" that doesn't seem to work. It just stays in the middle of "D" and "C". I dont even know what that gauge indicates. Which diagram should I be using to rewire this?
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Im looking to make a new wire harness but not quite sure its all connected correct. Im confused on which diagram to use. I dont have a voltage gauge inside the truck but there is a gauge that says "Alt" that doesn't seem to work. It just stays in the middle of "D" and "C". I dont even know what that gauge indicates. Which diagram should I be using to rewire this?
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