How does one determine a PTU failure? With a tune I was having issues where the rear end seemed to spin tire more often and cause loss of control in the rear; And at the same time with or without tune my car will stay stationary off the brake rolling back from some hills, reversing(and going forward sometimes) from hills or driveways = loud bang/bind in driveline. Front tires seem to scream at certain low speed turns and the car has harder steering / wacky wheel(pulls left or right).
I have 27K Mi on original fluid(My home dealer didn't know what it was, or how to change it) And I have an appointment with a different dealer this friday..
I also suspect one of the mounts gave out too, I can see the entire exhaust system under the car twist and bind between reverse and drive..
