Electrical Alternator charging battery too high

WHat voltage are you reading? A properly functioning alternator should output 14.4-14.6 volts at a min RPM value. The alt needs a certain speed to make full charge. Any slower (due to U/D pulleys perhaps) and it won't charge enough.

The alternator has a voltage regulator which controls that output. It can be replaced, but there may be a wiring issue with the vehicle causing it to be high if two alternators did this.

You can bring the alt to a auto parts store and have them test the alt voltage regulator.

You'll want to check wire 38 and 36 to see if the fusible links are OK and you have power on these wires.




Wire 904 runs to the cluster to the BATT warning light. Often if folks put LED's in here, it causes charging issues.