Shifting Clunk/Pop - AT Tranmission Issue - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

TofuJoe · 05-21-2017, 03:08 PM

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

TofuJoe · 05-21-2017, 03:43 PM

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]

humfrz · 05-21-2017, 06:53 PM

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

humfrz

TofuJoe · 05-22-2017, 12:40 PM

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.

humfrz · 05-22-2017, 12:59 PM

Quote:

Originally Posted by TofuJoe

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

Lonewolf · 05-29-2017, 01:29 PM

Any updates?

05-21-2017, 03:08 PM	#1
TofuJoe Ohne Titel Join Date: May 2015 Drives: 2017 BRZ PP ISM Location: SF Bay Area Posts: 684 Thanks: 1,141 Thanked 412 Times in 234 Posts Mentioned: 11 Post(s) Tagged: 0 Thread(s)	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 Attached Images Last edited by TofuJoe; 05-21-2017 at 04:52 PM.

05-21-2017, 03:43 PM	#2
TofuJoe Ohne Titel Join Date: May 2015 Drives: 2017 BRZ PP ISM Location: SF Bay Area Posts: 684 Thanks: 1,141 Thanked 412 Times in 234 Posts Mentioned: 11 Post(s) Tagged: 0 Thread(s)	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] Last edited by TofuJoe; 05-21-2017 at 04:54 PM.

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05-21-2017, 06:53 PM	#3
humfrz Senior Member Join Date: May 2013 Drives: 2013 FR-S, white, MT Location: Puyallup, WA Posts: 30,432 Thanks: 29,826 Thanked 32,845 Times in 16,844 Posts Mentioned: 715 Post(s) Tagged: 2 Thread(s)	Are you sure the sound is coming from the transmission, or, could it be further back in the drivetrain ......(lose rear axle nut).. ?? humfrz

05-22-2017, 12:40 PM	#4
TofuJoe Ohne Titel Join Date: May 2015 Drives: 2017 BRZ PP ISM Location: SF Bay Area Posts: 684 Thanks: 1,141 Thanked 412 Times in 234 Posts Mentioned: 11 Post(s) Tagged: 0 Thread(s)	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.

05-29-2017, 01:29 PM	#6
Lonewolf Senior Member Join Date: Dec 2011 Drives: Moped Location: CA Posts: 4,300 Thanks: 4,905 Thanked 2,132 Times in 1,195 Posts Mentioned: 21 Post(s) Tagged: 0 Thread(s)	Any updates?

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