Alternator over voltage
A couple of days ago while driving my truck I noticed the battery warning light come on for a few seconds before going out again. When I made it home I checked the battery with a multimeter and got a reading of nearly 15v. When I started the truck I measured nearly 17v with the alternator running. I checked the connections on the battery and the alternator for corrosion, etc. and everything looked ok. The voltage on the battery dropped back down to just under 13v overnight.
I was able to order a new voltage regulator for the alternator, but before replacing it I checked the voltages again and they appear normal today - 12v on the battery and 14v with alternator running.
Is it possible that I have an intermittent failure in the voltage regulator, or is there something else I should check before replacing it?
Thanks for the help!