brand new 258 Alternator voltage drops at idle
I have been having electrical problems in my '83 258 CJ-7 recently. i thought i had bad alternators, but i am thinking the problem is elsewhere. 2 days ago, i put in a Duralast 94 amp lifetime warranty alternator, b/c my 140 amp Powermaster kicked the bucket. now this new one is starting to act the same way. at idle, with 3 electricals on,( ie: headlights, heat, driving lights) the voltage drops way down to 12, sometimes below, depending on how long i let it idle. then the alternator squeals loudly till it charges back up. At first i thought the Powermasters had bad voltage regulators, but this is the 4th alternator that is doing this. where else could the problem be? need i replace the whole wiring harness? that requires alot of cash that I dont have. i have a voltometer, are there any particular wires i should specifically look at?
1983 CJ7, 258 I6