Is my alternator bad or is it my battery?

Question

I have a 93 new yorker

every time i roll down my window, flip my blinker or step on the brakes my voltage regulator dips down and if i have air blowing in the car it decreases and my headlights dim.... the abs pumps are bad on those cars anyways *recalled* but ive had it replaced within 2 years time, granted it sat for a year after the tranny blew out but that has since been fixed and has been acting up since i have a new battery and im just wondering if its my abs pump again or if i need a new alternator???

thanks

Answer 1

I vote alternator

Answer 2

Take your car to Sears and get your battery and/or alternator tested free.

Good Luck...

Answer 3

try this, while engine running disconnect one of the battery terminal, if the engine stop the alternator has a problem.

Answer 4

alternator. By design the alt is supposed to provide enough power to run anything on that car you might care to run... leaving the battery for its main job , starting the car. Dont wait too long to get it checked... these can go bad at the drop of a hat and leave you on the side of the road.

Answer 5

sounds like the alternator man...