2013 Ram 2500 CC with the 53.7 Hemi and 66RFE Tranny. When I accelerate I hear a slight whistling noise, almost sounds like the belts are loose. It's not though, as it goes away if I put the truck in park and rev. it definitely happens when I'm accelerating,if I take my foot of the gas it goes away. not very loud but definitely there. I've checked the manifold and the belts doesn't seem to be them. Something in the tranny?
Truck has less than 7k on it.
Truck has less than 7k on it.