Hello everyone. I was wondering if you kind gents could point me to the location of the voltage regulator on an 88 trans am 5.7ltr TPI. I've only had the vehicle a few days and I am running into the issue with a bouncing speedo and lights that dim up and down. I know it can be a few different issues and I'm tracking them down one by one to work bugs out. Thanks for your help.

 

The voltage regulator is built into the alternator if it's bad it's time for a new alternator, I'm not 100% sure but I believe you should have a mechanical speedo, in wich case the power woulden't make it bounce, mabe someone ells can chime in and clarify when gm switched over