AT Slipping Issues - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

OpteronO3 · 06-11-2015, 03:27 PM

I'm a new owner of a 2013 Scion FR-S just recently purchased with roughly 24k miles. Recently I've come across a strange issue figured I would share to see if anyone else is experiencing this. (I looked up a couple of threads in the forum and I didn't come across a similar issue.)

Anyways, I'm cruising at 40mph on 6th gear. I downshift to 4th in regular mode and it'll "not catch" as if it’s having slipping issues in 4th gear until I let go of the throttle. Not until I let go of the throttle, it'll shift aggressively into 4th gear. If I don't let go of the throttle long enough it'll just keep revving.
Is anyone having the same issue?

Quote:

Originally Posted by FRSBRZGT86FAN

....yours sounds like a serious slip, it could still be a TCM issue

Shinobu's Smile · 06-12-2015, 09:12 AM

I dont know if it helps, but sometimes i get an issue where ill give it a lot of throttle, the transmission downshifts, the engines revs and then after about 2 seconds it seems to "catch" and accelerate. This is in regular mode (not manual) and scared me a couple of times where traffic was coming up behind me a little fast. Its not exactly the same issue as yours but...

2015 AT BRZ

OpteronO3 · 06-12-2015, 10:19 AM

Actually that is exactly whats happening. You just explained it better lol. Do you experience this alot?

Shinobu's Smile · 06-12-2015, 03:53 PM

Not a lot. It usually only occurs when im about to change lanes to get from behind someone slow and once im in a new lane i have to go almost full throttle to keep from slowing down traffic behind me. I don't do this often, but when i do, it doesn't occur all the time (Maybe 3 times ever, 5000mi total on the odometer). Maybe because it happens in some gears and not in others. I really don't know if its a a mechanical issue or the transmission ECU programming issue but it sometimes scares me when i need it to accelerate and it doesnt. Sorry i cant be of any help.

Come to think of it. My 2010 tacoma (auto) would do something similar i guess. When i slowed down to take a left across traffic, i would give it a lot of throttle and sometimes it would rev the engine and not accelerate for about 1-2 seconds before it finally downshifted and "catched". Turns out, it was a common issue that they had an TSB for. I took it in, they reflashed the trans. ECU and it completely went away.

IceFyre13th · 06-12-2015, 05:09 PM

Easy fix, downshift with the paddles then nail the throttle......yes it has happened to me and that's my fix

Shinobu's Smile · 06-15-2015, 01:28 PM

Quote:

Originally Posted by IceFyre13th

Easy fix, downshift with the paddles then nail the throttle......yes it has happened to me and that's my fix

Thanks. Ill try that.

06-12-2015, 05:09 PM	#5
IceFyre13th Senior Member Join Date: Jun 2013 Drives: Mazdarati Location: Arizona Posts: 1,238 Thanks: 608 Thanked 1,369 Times in 675 Posts Mentioned: 8 Post(s) Tagged: 1 Thread(s)	Easy fix, downshift with the paddles then nail the throttle......yes it has happened to me and that's my fix __________________ It's only impossible if you stop to think about it.

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06-12-2015, 09:12 AM	#2
Shinobu's Smile Member Join Date: Sep 2014 Drives: 2010 Tacoma, 2015 BRZ AT Limited Location: SoFla Posts: 54 Thanks: 47 Thanked 12 Times in 10 Posts Mentioned: 2 Post(s) Tagged: 1 Thread(s)	I dont know if it helps, but sometimes i get an issue where ill give it a lot of throttle, the transmission downshifts, the engines revs and then after about 2 seconds it seems to "catch" and accelerate. This is in regular mode (not manual) and scared me a couple of times where traffic was coming up behind me a little fast. Its not exactly the same issue as yours but... 2015 AT BRZ

06-12-2015, 10:19 AM	#3
OpteronO3 Member Join Date: Jun 2015 Drives: 2013 Scion FRS Location: Garland, Texas Posts: 17 Thanks: 6 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Actually that is exactly whats happening. You just explained it better lol. Do you experience this alot?

06-12-2015, 03:53 PM	#4
Shinobu's Smile Member Join Date: Sep 2014 Drives: 2010 Tacoma, 2015 BRZ AT Limited Location: SoFla Posts: 54 Thanks: 47 Thanked 12 Times in 10 Posts Mentioned: 2 Post(s) Tagged: 1 Thread(s)	Not a lot. It usually only occurs when im about to change lanes to get from behind someone slow and once im in a new lane i have to go almost full throttle to keep from slowing down traffic behind me. I don't do this often, but when i do, it doesn't occur all the time (Maybe 3 times ever, 5000mi total on the odometer). Maybe because it happens in some gears and not in others. I really don't know if its a a mechanical issue or the transmission ECU programming issue but it sometimes scares me when i need it to accelerate and it doesnt. Sorry i cant be of any help. Come to think of it. My 2010 tacoma (auto) would do something similar i guess. When i slowed down to take a left across traffic, i would give it a lot of throttle and sometimes it would rev the engine and not accelerate for about 1-2 seconds before it finally downshifted and "catched". Turns out, it was a common issue that they had an TSB for. I took it in, they reflashed the trans. ECU and it completely went away.

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