Driveline shudder when lifting off throttle (not touching clutch) - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

NYC BRZ · 10-19-2012, 06:34 AM

Hi folks. I'm not sure if this is more common with other manual cars but I've never experienced this before.

When lifting off the throttle, specifically at lower speeds, I'm getting a shudder for a second or so in the driveline. This is without touching the clutch. If I'm cruising through light traffic say around 25mph and lift the throttle it bucks. Again, I'm no expert in manual transmissions but it doesn't feel right. Thoughts?

Grishbok · 10-19-2012, 08:31 AM

It can do that when the engine is cold, it shouldnt do that when its warm. Also, how many miles are on your motor? New engines that arent broken in are fluffy, slow throttle response etc and can do some things like that.

NYC BRZ · 10-19-2012, 08:52 AM

I've got 5900 on the engine and it happens even after its warmed up. I don't get it. Weird.

NYC BRZ · 10-19-2012, 09:03 AM

I've got 5900 on the engine and it happens even after its warmed up. I don't get it. Weird.

Innova · 10-19-2012, 11:00 AM

This sounds like the oh-so-common idle dip. Mine does it as well. It hasn't caused any issues.. yet

dnL · 10-19-2012, 01:32 PM

I think it's normal. It basically feels like engine braking is kicking in hard and fast, right? My FR-S does that after 8000 miles and even when it's warm. I feel like the throttle is just more sensitive than other cars I've driven, but it really only happens when I let off the gas abruptly. I'm just careful about how I let off the gas if I want to avoid it.

Jayde · 10-19-2012, 05:35 PM

It'll be more pronounced if you're in a lower gear. My BRZ does it, my old Integra with 186,000 miles did it, and my friend's Si does it. I'm sure it's normal. Believe, like others have said, it's engine braking.

10-19-2012, 06:34 AM	#1
NYC BRZ AutoX Addict Join Date: Mar 2012 Drives: 08 Pontiac G8 GT,13 GBS BRZ Limited Location: Queens, NY Posts: 723 Thanks: 168 Thanked 118 Times in 83 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Driveline shudder when lifting off throttle (not touching clutch) Hi folks. I'm not sure if this is more common with other manual cars but I've never experienced this before. When lifting off the throttle, specifically at lower speeds, I'm getting a shudder for a second or so in the driveline. This is without touching the clutch. If I'm cruising through light traffic say around 25mph and lift the throttle it bucks. Again, I'm no expert in manual transmissions but it doesn't feel right. Thoughts? __________________ 2013 BRZ Limited- GBS - 6MT -VIN #0937 ~~NYR SCCA # 18 C Street R (CSR)~~ "But there’s no mistaking the noise. This car is loud, and not in a particularly nice way. There’s no crisp exhaust note, no induction wheezing. It’s just the sound of petrol exploding in a metal box." - Jeremy Clarkson

10-19-2012, 08:31 AM	#2
Grishbok Volunteer Fire and Rescue Join Date: Jul 2012 Drives: Ambulance... sideways. Location: No. VA Posts: 546 Thanks: 97 Thanked 350 Times in 166 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	It can do that when the engine is cold, it shouldnt do that when its warm. Also, how many miles are on your motor? New engines that arent broken in are fluffy, slow throttle response etc and can do some things like that. __________________ It's more fun to drive a slow car fast, than a fast car slow.

10-19-2012, 08:52 AM	#3
NYC BRZ AutoX Addict Join Date: Mar 2012 Drives: 08 Pontiac G8 GT,13 GBS BRZ Limited Location: Queens, NY Posts: 723 Thanks: 168 Thanked 118 Times in 83 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I've got 5900 on the engine and it happens even after its warmed up. I don't get it. Weird. __________________ 2013 BRZ Limited- GBS - 6MT -VIN #0937 ~~NYR SCCA # 18 C Street R (CSR)~~ "But there’s no mistaking the noise. This car is loud, and not in a particularly nice way. There’s no crisp exhaust note, no induction wheezing. It’s just the sound of petrol exploding in a metal box." - Jeremy Clarkson

10-19-2012, 09:03 AM	#4
NYC BRZ AutoX Addict Join Date: Mar 2012 Drives: 08 Pontiac G8 GT,13 GBS BRZ Limited Location: Queens, NY Posts: 723 Thanks: 168 Thanked 118 Times in 83 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I've got 5900 on the engine and it happens even after its warmed up. I don't get it. Weird. __________________ 2013 BRZ Limited- GBS - 6MT -VIN #0937 ~~NYR SCCA # 18 C Street R (CSR)~~ "But there’s no mistaking the noise. This car is loud, and not in a particularly nice way. There’s no crisp exhaust note, no induction wheezing. It’s just the sound of petrol exploding in a metal box." - Jeremy Clarkson

10-19-2012, 05:35 PM	#7
Jayde Senior Member Join Date: Jan 2012 Drives: 2013 Satin White Pearl BRZ Limited Location: Poughkeepsie, NY Posts: 2,310 Thanks: 751 Thanked 696 Times in 464 Posts Mentioned: 47 Post(s) Tagged: 1 Thread(s)	It'll be more pronounced if you're in a lower gear. My BRZ does it, my old Integra with 186,000 miles did it, and my friend's Si does it. I'm sure it's normal. Believe, like others have said, it's engine braking. __________________ ◄Tri-State Owners Club, Facebook Group► *BRZerhood*

10-19-2012, 11:00 AM	#5
Innova Senior Member Join Date: Jun 2012 Drives: 2013 BRZ Limited Location: Louisville, KY Posts: 141 Thanks: 17 Thanked 37 Times in 29 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	This sounds like the oh-so-common idle dip. Mine does it as well. It hasn't caused any issues.. yet

10-19-2012, 01:32 PM	#6
dnL Senior Member Join Date: Apr 2012 Drives: Ultramarine FR-S Location: Bay Area Posts: 154 Thanks: 29 Thanked 89 Times in 28 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I think it's normal. It basically feels like engine braking is kicking in hard and fast, right? My FR-S does that after 8000 miles and even when it's warm. I feel like the throttle is just more sensitive than other cars I've driven, but it really only happens when I let off the gas abruptly. I'm just careful about how I let off the gas if I want to avoid it.

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