I have a 94 mx6. The crankshaft pully, alternator belt, and something else broke all at the same time. After thinking the something else was the alternator because it was only charging at 12 volts I put a brand new one on. That fixed it for about two weeks before it broke again, both of the alternators test good at advance. I've went through all my grounds and everything else seems to check out but no charge(limited). My dad thinks it's the voltage regulator. Please help me.