Before buying one unplug it and see if the pulsing stops. And when you do replace it make sure it is grounded good the external regulator do last very long (5 seconds) with no ground and are short lived with a poor ground. A poor ground will also raise voltage since the 2 wires hooked to it one is 12v+ and the regulator uses that wire and the ground it gets from the case to read voltage. the other wire is the ground side of the field circuit to the alternator. The regulator varies a ground on that wire more ground higher charge less ground lower charge get it?I will look into it a little more next week. I did a lot to it this
week and went kinda over my "car allowance" budget. I am
going to get the replacement VR from Schucks and see if that
does the trick.
I have read and been told to look at all the ground
wires/straps to make sure the ground is good on everything.
Is there a checklist of grounds to go from? I am very new to
this car and I don't know where to look for them all.
Also, it has some sort of electrical pulsing going on too.
The gauge needles pulsing and the static noise resonating
too. Hopefully that will be fixed when I swap in the new
voltage regulator and clean up the wiring.