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Old 01-22-2016, 12:58 PM   #1
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Braking problem

When I brake hard to activate the abs the car acts up by doing the same thing every time. The rear end shifts to the left then I feel abs come on while the steering wheel turns to the left but the car keeps going strait and once I'm completely stopped and accelerating forward the steering wheel stays turned to the left but the car is going strait for about a minute then the steering wheel returns to center. And sometimes after braking hard I can feel the abs still modulating the peddle while the traction control light flashes on and off even though I'm accelerating forward. When light to moderate braking the car feels fine. This only happens during hard braking.

What I've done to the brakes: I've installed the GT track pack brembo brakes on the front and replacement rear pads and rotors. I checked the abs sensors in the front for wear and tear and it looks fine, I still have to check the rear sensors. I reinstalled the stock front brakes and it still does the same thing.

My final step is to take it to the dealer but my warranty is gone so it's the last thing I want to do.


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Old 01-22-2016, 01:05 PM   #2
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Also the alignment is fine.


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Old 01-22-2016, 01:11 PM   #3
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My first guess would be one of your front brake pads sticking. When this happens, stop the car and see if one of the front wheel discs is unreasonable hot.
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Old 01-22-2016, 01:19 PM   #4
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My first guess would be one of your front brake pads sticking. When this happens, stop the car and see if one of the front wheel discs is unreasonable hot.

I don't have a temp sensor and they're both going to be hot because it's hard braking. And it does the same thing with two completely different sets of calipers, rotors and pads. And the car keeps going striae when the steering wheel is turned which is the weirdest thing. I will check if maybe the rears are sticking tho.

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Old 01-22-2016, 01:21 PM   #5
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Have you bled the brake lines recently?
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Old 01-22-2016, 02:13 PM   #6
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Have you bled the brake lines recently?

Twice in the past month

Thank you.


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Old 01-22-2016, 02:33 PM   #7
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the steering wheel actually turns? Then it'll stay turned and you drive straight?? Look at your wheels and see where they are pointed.

Is this while racing (or doing a good impression of it) try to disable the nannies....foot on brake while holding the t/c button 5 seconds.
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Old 01-22-2016, 03:10 PM   #8
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the steering wheel actually turns? Then it'll stay turned and you drive straight?? Look at your wheels and see where they are pointed.

Is this while racing (or doing a good impression of it) try to disable the nannies....foot on brake while holding the t/c button 5 seconds.

Yes it stays turned about a quarter turn but when I take my hands off the wheel the car goes strait and I can feel the abs modulating but then it stops modulating and the steering wheel still points left then after a minute the steering wheel goes back to center.

I tried turning off the TC using the 5 sec trick but it still happens.


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Old 01-22-2016, 03:52 PM   #9
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What exactly is it you're trying to accomplish here?
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Old 01-22-2016, 06:18 PM   #10
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What exactly is it you're trying to accomplish here?

I would like to know if anyone has had a similar problem. Or input on what to check before I take it to the dealer. I guess I've pretty much tried everything that people are going to suggest so I took it to the dealer.

The brake tech wasn't there so I am going to take it back to the dealer on Monday. The tech is going to check for codes and failed ABS components and if they can't find anything then I will demonstrate it for the brake tech. Also the service manager said that since my wheels are a different size from stock it might be confusing the ABS but I have a sct tuner and I had a tuning specialist calibrate the tune for my wheel and tire size. So we'll see.

I'm still open to suggestions and will update the status of this problem for others who have this problem.


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Old 01-23-2016, 12:57 AM   #11
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No, what are you trying to accomplish by intentionally kicking the ABS on?
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Old 01-23-2016, 02:38 AM   #12
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No, what are you trying to accomplish by intentionally kicking the ABS on?

I didn't find out this problem by intentionally activating ABS I found out because I like to drive fast so I need to stop fast.

Now I intentionally active abs to see if I have solved this problem.

Even if I did it intentionally activate it it's still a problem that needs to be fixed.




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Old 01-25-2016, 03:58 AM   #13
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Quote:
Originally Posted by Marc3.71994 View Post
I didn't find out this problem by intentionally activating ABS I found out because I like to drive fast so I need to stop fast.

Now I intentionally active abs to see if I have solved this problem.

Even if I did it intentionally activate it it's still a problem that needs to be fixed.




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Honestly it sounds like you're beating up the brake system. You basically said that you're constantly driving around at speeds that require you to brake to the point of ABS kicking on. Not only is this extremely hard on the car (and probably why you've got components failing), there's no way this is safe on public roads.

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Old 01-26-2016, 07:23 AM   #14
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Honestly it sounds like you're beating up the brake system. You basically said that you're constantly driving around at speeds that require you to brake to the point of ABS kicking on. Not only is this extremely hard on the car (and probably why you've got components failing), there's no way this is safe on public roads.

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I've had that happen before, yes, but I was racing as well and my DA cousin in front cut me off by accident. My brakes went to the floor and ABS kicked on after my wheel was pulled to the right, I believe. That was last summer. Never happened again after that probably because I went from 120 to around 75 in no time.

I also agree with him, when you give your car to the staff at the dealer, they will just look at you and see $$$$$, unless it is doin this all the time; with normal grandma driving

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