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Got a 1994 Ranger on a trade. Battery will not charge from the alternator. Figured the quick fix would replace the alternator, still not charging. figured maybe the new alternator was bad. So put another one in. Still nothing.
I just tested the yellow/white striped wire with car off. 13v. So this is telling me that the circuit is complete because the battery is reading 13v and so is it at the alternator yellow/white striped is also reading 13v. Wouldn’t this tell me that the wiring has no short or corrosion? When starting the car it goes into the 12v range same at the yellow/white striped. 12v. When I plug the alternator back in, no jump in volts at the battery. What I’m I missing here?
attached pics shows the car off in the 13v range. After starting the car 12v range. Freshly charger battery, car not running. Freshly charger battery, car not running. On the yellow white striped wire After starting the vehicle testing both locations 12.7 V
