Thanks for the reply.. I think I figured out what you mean by voltage drop..
It just now come to me.. I was checking with both leads of meter to ground, and it would show 0.. But what you're implying is to keep one on the "hot side" of the battery, and "rotate" grounds from the battery to the reg. case to the alt. case and take notice of the voltage.. Right?? (Sorry, sometimes I have a "lapse of brain function" )
As for the pulsating, I show voltage fluctuations at the battery (once charged from starting) as well as it shows up in the amp gauge in the dash.. Using the meter I have it will slowly climb from "start voltage" 12.5 +/- right after the truck fires (depends on glow plug cycling, cranking time, cold start, etc.) and will work it's way up to about 14.7 or so, then will drop to 14.0 +/- like the regulator kicks out, then kicks back in.. and it will then just repeat itself from the high 13's to the high 14's
The only reason I don't just change the regulator is I was advised that the "solid state" regulator shouldn't do this, so I am looking to exhaust all other possibilities first, but it really seems to me like the regulator is failing to function properly. It never bothered prior to a prolonged parked period (I used to drive it almost everyday, but it has went less than 150 miles since April, well up till the other night)
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