Shifting Clunk/Pop - AT Tranmission Issue
 

Got up and went for a canyon drive this morning. When downshifting from 3rd to 2nd in manual mode on my 2013 AT FR-S, I heard a pop/clunk noise.

• Heard the quick pop/clunk when downshifting from 3 to 2 about 80% of the time (check the video link below).
• Didn't seem to matter where I was in the rev range, or whether I kept the throttle down or lifted (never lift, bro).
• JDL catted UEL, stock front pipe, Perrin catback, Delicious ECUtek tune. Car never made sounds like this before.

I've had the car for 2 years and put 16K on it (bought at 8K). Never had any issues.

Took it easy on the way home and put it back in automatic mode. Opened the hood and below are photos of what I saw. Transmission fried? #totaled? WTF

Here's a quick video of some downshifts from 3rd to 2nd. The car has never made a popping noise like this before.
This recording is with a cheap mic hooked up to a GoPro. The mic is in the sound tube hole.

[ame="https://www.youtube.com/watch?v=8nRiGNJHWbU"]https://www.youtube.com/watch?v=8nRiGNJHWbU[/ame]

Are you sure the sound is coming from the transmission, or, could it be further back in the drivetrain ......(lose rear axle nut).. ??


humfrz

Sounds like from the transmission. The photos above are from the passenger side near the firewall. There's been some kind of fluid leak here. Radiator fluid is fine. Not sure what's going on. Carefully tested again this morning, and the pop was much more intermittent.

Fluid leak .... hmmm ...... maybe transmission fluid .. ??

I reckon if it were my car, I would take it to a transmission shop (or a dealer) and have the transmission inspected to see if they can find where it (or something) is leaking and have the transmission oil changed.


humfrz

Any updates?