Alternator Surges
#1
#3
when my truck is cold the alternator fluxuates from 12 to 15 volts but it doesnt affect any of the other systems on the truck, except that the lights get brighter or dimmer. i dont know if this the same as ur truck but i just figured it was the alternator cycling or something. i never really worried about it.
#4
#6
i had the same problem on my 91 it would drop down to like 5 volt and then jump back up to normal it only does it in the morning for me,i think it might have something to do with my remote start,but now that i think about it i might go home and check that ground wire see if thats the cause
#7