Wining sound from 4T65e

[mrl390]

Does anyone else experience a wining sound from their 4t65e under hard acelleration? Mine does it sometimes, especially when going up a hill. The car only has 36000 miles on it and shifts smooth. Just wondering what the sound could be.

[91DOHC284]

probably the oil pump not picking up or being too weak. at least thats what i encounter on car's with auto tranny's. dont have any personal experience with that tranny tho. but i'd say oil pump 90% sure. check how much fluid you have in it maybe there isnt enough for it to pick anything up