My 2015 Yukon Denali 6.2l 8spd is whining at idle. It doesn't do it when it's cold, only when it's at operating temperature. The whine is rpm dependent and will get louder when revved. Dealer diagnosed it as transmission pump wine and said it's totally normal. Told me that new ones are doing it right off the lot.
I was hoping you guys could chime in on whether or not your vehicles make similar sounds.
I was hoping you guys could chime in on whether or not your vehicles make similar sounds.
