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holy crap i almost crashed

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Old 09-04-2014, 08:36 PM   #1
13'GT Black
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Default holy crap i almost crashed

Just got home from airport, decided to have some fun on the way and hear my roush wot for the first time. Cruising at 80mph floored it and car violently jerked to my left, it scared the crap out of me. At first i thought was a slick spot on the road, so i tried again same thing happened but this time i was more prepared. Im thinking its alignment problem since traction light didnt come on. It would of been very unfortunate if i did lose control..... Guess i have to vist an alignment shop tomorrow.
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Old 09-04-2014, 08:45 PM   #2
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Some massive torque steer going on. Sure it's not fwd . Could actually be tire related.

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Old 09-04-2014, 09:24 PM   #3
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how so?
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Old 09-04-2014, 10:12 PM   #4
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Tire that is worn unevenly or conical can cause it.

If you're only feeling the pull under acceleration I'd guess it's more likely a worn suspension component than alignment. Alignment you'd generally notice some all the time. Under acceleration you're shifting weight on the suspension which is where you'd notice a worn bushing or something.
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Old 09-04-2014, 10:24 PM   #5
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Tires seems fine except for slight feathering. Theres a slightly left pull under normal driving too. Its not bad but under wot its violent. I think its alignment issue. Tire kingdom dont display caster, im wondering if i knocked it out spec when i hit the big pot hole a month back
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Old 09-05-2014, 04:25 AM   #6
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Likely a worn lower rear control arm bushing.
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Old 09-05-2014, 06:38 AM   #7
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On a 2013? I think you're just losing traction somehow.
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Old 09-05-2014, 07:28 AM   #8
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On a 2013? I think you're just losing traction somehow.
Yea you wouldn't think on a 2013 anything would have worn out , but if his traction control is turned on a working it should have cut power instantly to the tires keeping him from loosing any traction .
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Old 09-05-2014, 08:07 AM   #9
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Yea you wouldn't think on a 2013 anything would have worn out , but if his traction control is turned on a working it should have cut power instantly to the tires keeping him from loosing any traction .
it's a reactive system, it can only kick in after it detects wheelspin. on a damp road I can break the tires loose on my car in 3rd gear easy, and if the road is crowned it will start to fishtail before advancetrac gets on the job.

methinks the OP is exaggerating just a bit.
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Old 09-05-2014, 09:55 AM   #10
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im not.... it was a very violent jerk to left. It felt like someone yank my steering wheel soon as i floored it. Traction control light didnt come, im assuming its my alignment. Im getting it checked out in a hour.Suspension shouldnt be worn already since its a 13 with 12k miles.
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Old 09-05-2014, 09:57 AM   #11
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Quote:
Originally Posted by 13'GT Black View Post
Tires seems fine except for slight feathering. Theres a slightly left pull under normal driving too. Its not bad but under wot its violent. I think its alignment issue. Tire kingdom dont display caster, im wondering if i knocked it out spec when i hit the big pot hole a month back
Feathering and a pull....alignment issue (toe related)...unless you've done some off-roading to wear out the suspension components. Although, over time, bushings and suspension do settle so if you've never had it aligned since the factory, I wouldn't be surprised if it needs one now. Off-roading or not.
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Old 09-05-2014, 10:32 AM   #12
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Quote:
Originally Posted by dawson1112 View Post
Likely a worn lower rear control arm bushing.
This ↑↑↑

Especially if the rear LCAs have been replaced with poly-bushed aftermarket LCAs - a common mod. The poly itself can crack, split, and fail if it's been beat on with enough hard launches. I'd check the driver side LCA first.


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Old 09-05-2014, 11:10 AM   #13
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Quote:
Originally Posted by Norm Peterson View Post
This ↑↑↑

Especially if the rear LCAs have been replaced with poly-bushed aftermarket LCAs - a common mod. The poly itself can crack, split, and fail if it's been beat on with enough hard launches. I'd check the driver side LCA first.


Norm
My car is stock for the most part except for adj phb and roush a/b.

I just got home from the alignment shop, it was my driver wheel toe was out. I wot again with huge fear but problem was alignment. Im good now.
Thanks everyone for helping.
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Old 09-05-2014, 03:28 PM   #14
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How far out was it?

I drove my car for a couple days after installing lowering springs with almost a quarter inch toe out on both sides (yes, nearly half inch total toe). Didn't really have any issues driving it at all, and I went WOT plenty of times. Of course, it was fairly even from side to side, so it may be more of an issue if one side is way off from the other.
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Old 09-05-2014, 05:31 PM   #15
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When you hit that pothole, something probably bent that made the toe go way out.

First question, was the steering wheel a bit off center right afterward?
Second question, did they replace any parts (like the knuckle/"spindle" because the steering arm was what bent)?


My understanding is that when any change is made ton the alignment settings on a vehicle with stability control, the steering angle sensor needs to be reset, else the stability control can do some unexpected things that typically involve the brakes at one wheel. I wouldn't be surprised if pothole damage could have brought it on by its effect on alignment (obviously without giving the SAS its reset).


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Old 09-05-2014, 06:56 PM   #16
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Quote:
Originally Posted by Norm Peterson View Post
When you hit that pothole, something probably bent that made the toe go way out.

First question, was the steering wheel a bit off center right afterward?
Second question, did they replace any parts (like the knuckle/"spindle" because the steering arm was what bent)?


My understanding is that when any change is made ton the alignment settings on a vehicle with stability control, the steering angle sensor needs to be reset, else the stability control can do some unexpected things that typically involve the brakes at one wheel. I wouldn't be surprised if pothole damage could have brought it on by its effect on alignment (obviously without giving the SAS its reset).


Norm
I dont the that alignment sheet with me right now. Only driver front wheel toe is off and it was pretty close to the left edge of the degree scale. I think its the pirelli stock tires. I find them to be alignment sensitive and nosiy after 3k miles.

@Norm
I hit the pothole with passenger side a month back. It slightly bent the inner side rim but steering wheel were striaght maybe slightly off. No suspension were damaged as far as they can tell and alignment came out good. One thing i dont understand is when i get alignment at tire kingdom the print out shows no caster. The guy told me theres no caster and mess around the computer and told me he had to "create caster to get a reading". I normally get a print out at ford dealerships.

Another weird thing is i didnt expect the driver wheel since last week i hit another semi large put hole with passenger side. But passenger side reading were fine. Alot of potholes is popping up everywhere with all the rain.
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Old 09-05-2014, 06:56 PM
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