I installed a remanufactured Bosch alternator in my 86 Nissan truck after the voltage regulator died in the original one about 6 months ago. Recently I've noticed that there are small voltage fluctuation in my car. According to the in-dash voltmeter, it looks like the volts are +/- 0.3 or so volts. I can notice the headlights and dome light flickering a little. The average voltage is about right, but the frequency of the fluctuations increase as the RPMs increase.
Is this a problem with my alternator or could it be from a bad/damaged battery?
Thanks,
- Dave