LML Whine
Our new 2011 has a somewhat pronounced whine in the engine compartment that in the cab seems a bit more audible from the passenger seat than the drivers seat. The whine is definately load related and seem to abate a bit as drive train reaches normal temp levels but not by much. After picking up the new truck it was immediatly noticeable and of enough concern to me that I requested a drive in another truck to see if the noise was present in it. I drove another truck and could get a hint of the same whine but it was just barely noticeable. The whine, after normal temps are acheived and when traveling at highway speeds is just barely detectable. I want to say that it is turbo whine but it is almost bearing like or even transmission valve harmonic like from a bad seat or debris obstruction. Engine runs great and the transmission performs flawlesly. I when back to the dealership and had a tech go for a drive with me, they agreed that the whine was not the norm, but that i should just drive it and keep an eye on it?
Thoughts
2011 Chevy 2500HD LML
Red with Dark Cashmer Light Cashmer
Superglide 5th wheel hitch
Bed Rug
Jack Rabbit Full Metal Jacket bed cover
Aries 4" oval step rails
LBZ now lives in Wisc.