Flickering & Pulsating Lights Interiror

Hi i have a 2dr regal 3.8 and the interior lights will flicker and pulsate badly after i close the door. when i open my car door the lights go off including the interior lights but when i close the door they come on. almost as if backwards

I have read post about alternators and voltage regulators but didnt know if buick built the voltage regulator inside the alternator. dont know much about cars but heard the regulators are sometimes seperate to change them if that is the problem.

any tips? thanks:runaround:

Welcome to AF, moving this to the Regal forum below.

Important to annotate what year Regal.

For GM/Delphi alternators the voltage regulator is an internal part of the alternator.

Important to annotate what year Regal.

For GM/Delphi alternators the voltage regulator is an internal part of the alternator.

There were a LOT of Regals built since 1973, all of which used an integral regulator. Your initial statement is spot-on. Since they weren't available with a 231 V-6 until 1975 that narrows the possibilities to only about eighty variants. That should be a piece of cake... :)



slixz85,

Knowing the year is crucial. It may be a BCM, theater module, jamb switch, PCM, latch switch, headlight switch, UEC, wire harness, remote module, and probably a hundred other things. It is not, however, an external voltage regulator.

thanks for the time so far yeah it is a 1992. not a car tech by far so heres all my cars specs
http://www.carfolio.com/specifications/models/car/?car=18557
if needed to know. thank you

yeah its a 1992 http://www.cargurus.com/Cars/Specs-c5365-1992-Regal.html <--- specs on car its a 3.8 optional for the custom i have cuz 3.1 came std