Well the other night i came home in the rain with my voltage below 12V so i was like WTH! i charged it overnight and started the car up in the morning and i hear this whining noise coming from alternator area, so i guess my alternator is on its way out. i havent had problems starting her up yet..phew! I packed with school work and i don't plan to change it until atleasy 1 or 2 weeks later. I have the original toyota MK2 alternator still in my garage when my dad replaced it at 70k km with a rebuilt one(now its almost 150k) and i was wondering if any one in the lowermainland can upgrade it so maybe it can produce 90-100amps?how much would it cost?