ok, here goes.

When I start my car up in the cold mornings, my voltage goes high. Like, 15+v. Yesterday it was up to 15.8v.
As the car warms up the voltage will come down to 14.8, but it wont stay there. driving under load is about 14.5. Unless I turn on ANY loads. Turning on my blinker will make the voltage tick between 14.2 and 14.5. if i turn on my headlights and a/c fan, and load the system up the voltage will drop down to like 13.5.

if i sit in traffic, the voltage will continue to drop below 13v, ive seen it as low as 12.1.

if i get on the throttle, the voltage will go down the higher the rpms go up. if it starts at 14.5, just putting my foot to WOT will drop the voltage to 14.1, and go down as the rpms go up.


The alternator is brand new. I've had 3 alternators in the car and it has had the issue the entire time (original alt, used alt, rebuild alt)

I can't figure out what the hell is my car's problem. The alternator is SUPPOSED to put out a constant voltage no matter the load. but when i sit at a stoplight on hot days i can HEAR my fuel pump slowing down. it is a major issue.

This morning my battery light was on, but my voltage was 14.8. after about 2 minutes of driving the battery light went off.

HELP. I can't even dyno the damn thing because when it sits on the dyno everything heats up and the voltage gets so low my fuel pump cant keep up and i lose pressure.