Jsgunn63
Junior Member
The PCM on my 2010 5.7 1500 is no longer sending current to the alternator exciter. A new PCM unit is currently unavailable and I have had a rebuild on order for ever. There seems to be some confusion as to whether or not I can install an External voltage regulator on ths type alternator(internal regulator...remove maybe ?)> I have jumped the alternator exciter to the battery and it charges full field, so Alt fine . Any knowledgeable help appreciated JG