I have a 2019 ZL1 1LE A10, I often drive in manual mode (probably 3/4 the time) and I've noticed the car is beginning to strain when shifting from 3rd to 4th under all load conditions, especially noticeable when
not driving hard. It happens every time but only 3 to 4.
By strain I mean, it takes longer and a slight whine builds up just before the shift.
Anyone else experience this?
Thanks
**Update** 10/17/2019