Car jerks to the left - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

DJjoey0812 · 09-02-2019, 06:00 PM

So I bought a 2013 scion frs and about a week later I'm noticing when I'm driving down the road and steering left it jerks hard and traction control turns on hard af but when doing a very similar or same steering to the right it doesn't do it, neither does it do it when driving stait other then a sharper left turn, I figure I'm looking at some part related to steering to be replaced

RZNT4R · 09-02-2019, 07:01 PM

Traction control jerks the car when you steer left.

Literally the easiest way to diagnose this is to bring it to a qualified mechanic, because if it's not throwing codes, there will be a need to drive the car and reproduce the issue with traction control live data on a scan tool to catch what's going wrong.

It could be a wheel bearing, it could be a wss, it could be the steering angle sensor, it could be the yaw rate sensor, it could even be a super crooked alignment.

soundman98 · 09-02-2019, 08:09 PM

oh! the CAR jerks to the left. i was trying to figure out how i stay to the left on an internet page.

get the alignment checked.

Mr.ac · 09-02-2019, 10:45 PM

Check tire pressures.
If not the tires, check alignment

Will BRZ · 09-03-2019, 12:39 AM

Quote:

Originally Posted by soundman98

oh! the CAR jerks to the left. i was trying to figure out how i stay to the left on an internet page.

get the alignment checked.

That’s funny lmao

Spuds · 09-03-2019, 08:30 AM

A few questions to help narrow the possibilities down.

1. Are you doing anything other than steering when this happens? On the gas/brake?

2. Does this happen only in one place, or a bunch of different places?

3. How sharp to the left do you have to turn? Is this like a curve, or a turn onto another street?

4. What speeds does this happen at?

5. Does it happen if you turn TC off with the long press? (Only do this if you are sure this won't cause you to hit anything if you lose control of the car, TC and VSC could actually be doing the right thing)

Tcoat · 09-03-2019, 08:53 AM

Quote:

Originally Posted by Spuds

A few questions to help narrow the possibilities down.

1. Are you doing anything other than steering when this happens?

2. Does this happen only in one place, or a bunch of different places?

3. How sharp to the left do you have to turn? Is this like a curve, or a turn onto another street?

4. What speeds does this happen at?

5. Does it happen if you turn TC off with the long press? (Only do this if you are sure this won't cause you to hit anything if you lose control of the car, TC and VSC could actually be doing the right thing)

6) did you inadvertently buy an ex stock-car?

Lantanafrs2 · 09-03-2019, 10:09 AM

Differential?

Snake · 09-03-2019, 06:27 PM

The way I read it is that when OP jerks the car to the left the stability control kicks in early and when OP jerks it to the other side the stability control doesn't. Could be wrong though, their writing skills could do with a bit of work.

Sent from my CPH1979 using Tapatalk

Sapphireho · 09-03-2019, 06:34 PM

Quote:

Originally Posted by DJjoey0812

So I bought a 2013 scion frs and about a week later I'm noticing when I'm driving down the road and steering left it jerks hard and traction control turns on hard af but when doing a very similar or same steering to the right it doesn't do it, neither does it do it when driving stait other then a sharper left turn, I figure I'm looking at some part related to steering to be replaced

You turn harder left than you do right.

HKz · 09-03-2019, 06:43 PM

maybe OP is a big dude so left turns get some extra momentum ^^

Spuds · 09-03-2019, 06:47 PM

Quote:

Originally Posted by HKz

maybe OP is a big dude so left turns get some extra momentum ^^

Right turns would have greater angular momentum in this case, but it was funny anyway

DandoX · 09-03-2019, 07:46 PM

I wonder if it could be a stuck guide pin in the front left caliper? TC turns on but since that guide pin is not moving properly it would not engage properly. Without a wealth of info from the OP we cannot help. With such a generic description best advice is to take it to a mechanic who can diagnose it properly rather than let a bunch of jabronis on here take wild guesses like myself.

DJjoey0812 · 09-04-2019, 12:17 PM

Quote:

Originally Posted by Spuds

A few questions to help narrow the possibilities down.

1. Are you doing anything other than steering when this happens? On the gas/brake?

2. Does this happen only in one place, or a bunch of different places?

3. How sharp to the left do you have to turn? Is this like a curve, or a turn onto another street?

4. What speeds does this happen at?

5. Does it happen if you turn TC off with the long press? (Only do this if you are sure this won't cause you to hit anything if you lose control of the car, TC and VSC could actually be doing the right thing)

Well for everyone here
1. Gas or without gas it does it
2. It happens anywhere where I have some type of left turn
3. It happens on most curves and all left turns
4. Speed doesn't matter
5. I prefer to drive with TC off but when it's on traction control and I turn left on a curve or a actual turn it turns on hard af to counter the car yanking me to the left and with it off and I do the same it yanks to the left hard and I gotta be ready to counter it or it will probably yank you into a car or curb that's next to you

09-02-2019, 08:09 PM	#3
soundman98 ProCrastinationConsultant Join Date: Sep 2013 Drives: '14 Ranger, '18 Tacoma 4Dr LB Location: chicago-ish Posts: 11,330 Thanks: 35,240 Thanked 13,673 Times in 6,781 Posts Mentioned: 98 Post(s) Tagged: 0 Thread(s)	oh! the CAR jerks to the left. i was trying to figure out how i stay to the left on an internet page. get the alignment checked. __________________ "The time you enjoy wasting is not wasted time"

09-02-2019, 10:45 PM	#4
Mr.ac [insert cool phrase here] Join Date: Aug 2015 Drives: BRZ Premium Location: Central Coast CA Posts: 2,369 Thanks: 709 Thanked 1,558 Times in 930 Posts Mentioned: 30 Post(s) Tagged: 0 Thread(s)	Check tire pressures. If not the tires, check alignment __________________ New daily driver - Subaru BRZ Premium Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged

09-03-2019, 08:30 AM	#6
Spuds The Dictater Join Date: Apr 2017 Drives: '13 Red Scion FRS Location: MD, USA Posts: 9,427 Thanks: 26,106 Thanked 12,428 Times in 6,146 Posts Mentioned: 85 Post(s) Tagged: 0 Thread(s)	A few questions to help narrow the possibilities down. 1. Are you doing anything other than steering when this happens? On the gas/brake? 2. Does this happen only in one place, or a bunch of different places? 3. How sharp to the left do you have to turn? Is this like a curve, or a turn onto another street? 4. What speeds does this happen at? 5. Does it happen if you turn TC off with the long press? (Only do this if you are sure this won't cause you to hit anything if you lose control of the car, TC and VSC could actually be doing the right thing) Last edited by Spuds; 09-03-2019 at 09:46 AM. Reason: Clarifying #1

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09-02-2019, 07:01 PM	#2
RZNT4R Professional Mechanic Join Date: Apr 2010 Drives: 2017 86 6MT Oceanic Location: Quebec, Canada Posts: 789 Thanks: 17 Thanked 633 Times in 371 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	Traction control jerks the car when you steer left. Literally the easiest way to diagnose this is to bring it to a qualified mechanic, because if it's not throwing codes, there will be a need to drive the car and reproduce the issue with traction control live data on a scan tool to catch what's going wrong. It could be a wheel bearing, it could be a wss, it could be the steering angle sensor, it could be the yaw rate sensor, it could even be a super crooked alignment.

09-03-2019, 10:09 AM	#8
Lantanafrs2 Senior Member Join Date: Jan 2018 Drives: 2013 frs red Location: South Florida Posts: 3,517 Thanks: 2,520 Thanked 3,088 Times in 1,654 Posts Mentioned: 6 Post(s) Tagged: 1 Thread(s)	Differential?

09-03-2019, 06:27 PM	#9
Snake Senior Member Join Date: Dec 2012 Drives: ADM Toyota 86 GT Location: Australia Posts: 117 Thanks: 32 Thanked 63 Times in 37 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	The way I read it is that when OP jerks the car to the left the stability control kicks in early and when OP jerks it to the other side the stability control doesn't. Could be wrong though, their writing skills could do with a bit of work. Sent from my CPH1979 using Tapatalk

09-03-2019, 06:43 PM	#11
HKz Reformed Join Date: Sep 2014 Drives: '23 GRC, '11 Prius, '04 RAV4 Location: Mesa, AZ Posts: 1,312 Thanks: 1,234 Thanked 1,133 Times in 588 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	maybe OP is a big dude so left turns get some extra momentum ^^

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