Hello,
Question with my 07 Grand Prix. I was driving down the road at all different speeds and my dash lights, radio lights, head lights, tail lights, dome light were all pulsating. Car seemed to run fine. I drove a few miles and turned the car off. Started again drove few more miles and turned off car and started up again. 5 times I'm guessing. Eventually it quit pulsating. This happened 6 months ago also and when I took it to my mechanic they couldn't find anything. It might not happen for another 3 months but I would like to fix the problem. I did replace the alternator before this happened for a different issue not related to this problem. I'm no mechanic so any help would be greatly appreciated. Thanks
