I have searched the forum and could not find anything similar. My problem is that at certain times in low speed the car will make a thr..thrrrr.thrrrr...thhrrrrrr sound. Once I speed up I will never heard the sound again. I have taken the car in and checked the following:

1. Axle
2. Bolt Joints and Brakes
3. Rotors and Rims

They are all perfectly fine. The other thing I noticed is that at certain times it seems the car is hesitating to get into the next gear. I have been trying to monitor at what speeds but cannot get the exact speed.... I'm leaning towards the range of 40 to 66. This also does not happen all the time.

 

is it like a clicking/chattering sound when you start to accelerate???

 

It's more of a chattering sound, like a vibration