Quote:

How many volts does it spike to?




Looks like about 16 on the gauge. It is very momentary -- the gauge needle will flick back and forth.

My bulkheard connectors and wires should be good as they all are new.

I ordinarily would think this was a voltage regulator ground issue. Does anyone think I should run an extra ground wire from the alternator case to ground? Any issues with doing that?