whining noise on 2007 GMC Sierra 2500HD
I always enjoy coming on here and getting advice on minor bumps I come across along the way.. My current issue is on cold days only, I have a "whine" when first driving my truck until it warms up aft...
Forum Discussion
The Allison is famous for having a whine when cold. Normal there. Unsure about the 4l80e but if I were you I'd take the trans guys word and ignore. If only when cold seems normal to me.
