Hi guys got the 5eat 5th Gen 2010 GT with a Ecutek tune.
About 4 months ago I was going around a corner in 2nd or 3rd and the trans felt like it was in neutral just after I had straightened up. I immediately came off the throttle (should have quickly pushed it into N) then suddenly massive bang from the rear of the car and back to normal. Thank god I was at 0% throttle.
Latter about a week or 2 latter, i felt something similar with pulsing moderately heavy judders/ bangs, again felt and sounded like it was coming from the rear of the car, again I completely went off the throttle.
Panicing for my life I immediately got atf changed, front diff oil. Changed and rear diff oil changed. Tuner noted metal shaving in the rear diff.
4/5 months have passed and have not had anything like it since. No codes, no CEL and have not been babying it. I can assume the tuner might have done a TCM reset as my map disk had forgot itself when I got the car back (at the very least the battery was disconnected).
Any thoughts? Have not done any of the 5th gen TCM updates (if they exist). Could my diff oil or atf have been so dirty / out of spec that undefined behaviour combined with my tune could have caused this behaviour?.
Let the 5eat wizards and speculators have at it!!