Nyjetfan21
Member
- Joined
- Jan 31, 2015
- Posts
- 80
- Reaction score
- 2
I have a 2003 yukon 5.3 Liter. The last day or two my dash board was blacking out and would come right back on as if I lost power for a split second but didnt have any affect while driving. I was leaving work today and the truck was suddenly dead and needed a jumpstart. I have a brand new battery and the alternator is a little over two years old. I do notice when the truck was running for a while weeks months ago that the headlights have a little dimness and brightness to them before this happened. Does anybody know what this can be and how I can diagnose the problem thank you