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Alternator putting out 18 volts why?
2003 Ford Windstar

Alternator putting out 18 volts why?

(2003 Ford Windstar)
My Van battery died when the weather was really cold and it had to be jumped. The battery was then fully charged and running then the battery light came on and the gauges and instrument panel went crazy. I had the Alternator tested and it was reading output of 18 volts which is way to high. the next day the battery was completely dead so I bought a new battery. The instrument panel and gauges are still not right. I am at a loss.
Tags: ford, windstar
1 answer & 1 comment
Popular Answer
on February 08, 2019
Suspect failed voltage regulator - it’s inside the alternator - alternator replacement required.
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on February 08, 2019

*Hands-on* test is highly recommended before parts replacement - this includes all related wiring and ground circuits
General Diagnosis
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on February 08, 2019
Suspect failed voltage regulator - it’s inside the alternator - alternator replacement required.
Sign in to reply
on February 08, 2019

*Hands-on* test is highly recommended before parts replacement - this includes all related wiring and ground circuits

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