When starting engine cold in morning, after start up, get little whine in engine for a couple seconds ,then goes away.(almost like somethings kickin in)Seems only at cold start. Dealer found nothing.Thinkin maybee belt?

 

my first thought,(often wrong), is alternator but that is usually in the audio,not external.
i am reminded though in cold start, i "sometime", not always hear the fan roar!
last night,42 degrees and not a sound on first start?? so whats with the fan.

btw you might monitor the volts at start,15v, and see if the whine stops when volts drop to 13-14.

 

I'm think'n may be leave alone....Lol!
Actually in cold weather get the same thing. WI.

Chris

 

Mine was doing that.. Tensioner pulley needed replaced

 

There are alot of things that can whine, Tranny will whine if it is low as well.