So when I'm driving at night my headlights, interior lights, and heater/AC get bright/blow harder and then calm down...and it just happens randomly. Is it maybe the belt running my alternator? I thought about that...maybe just tighten that up a little bit? The alternator is brand new...so I'm pretty sure that's not it

 

definally its your alternator.. Alternator is making too much Voltage for your car.. get a voltmeter and check it out!!!

 

ok...well how would I go about fixing this? Just get another alternator?

 

Trying to get an answer...any help is appreciated...