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charging issues on 1st gen toyota

599 views 2 replies 3 participants last post by  BHall22 
#1 ·
Ok, alt died a couple months ago, replaced it, all was good. Last week while sitting at a light, my radio shut off. I looked at the volt gauge and it was way low. Like 9 volts maybe. Revved the truck and the radio came back on and volts jumped to 12-14. Checked the wires and one was loose on the back of the alt. It was the wire that is connected to the brass piece to another terminal. Tightened it back up and all was well. Now the volts are dropping again and all connections are tight still....anyone else experience these problems? I've read that the voltage regulator can go bad but I don't know how to test it. Would it be worth it just to swap in a gm one wire alt?
 
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