My tranny gets a little "whiny" if:
A) Car is driven hard
B) I take a long road trip

Other than that (short trips etc) it doesnt get loud.

But after everytime I drive my car hard....the tranny starts whining during normal downshifting, deacceleration etc..

This also happens after hour or so road trips. I had heard it was because the fluid thins out thus producing more noise. Is this true? Or the tranny gets hot?

This is my 2nd tranny. My 1st tranny did the same thing. When they put the 2nd tranny in I thought it would go away. Didnt.

I had heard this was normal for a lot of cars though (normal for tranny to be louder after tranny gets hot)

Anyone?

 

Is it a pitchy motorized winding noise??

I get something like that when I put the car into neutral when parking after driving it for awhile. I only notice this after long drives more than 30 minutes.
If the oil temp is a little over 30 then I don't hear it.

 

It's not the "clutch out, car in neutral rattle" everyone hears at idle. Mine is while driving