05-29-2013, 12:06 AM | #1 |
Drives: SS Join Date: Mar 2013
Location: USA
Posts: 221
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Say What?
Huh?
Last edited by 130R; 01-15-2016 at 06:52 PM. |
05-29-2013, 12:14 AM | #2 |
ROAD COURSE JUNKIE
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I have had an issue with the right front doing the same thing when downshifting only. Not sure WTF.
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05-29-2013, 07:27 AM | #3 |
bad wheel speed sensor? maybe?
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05-29-2013, 09:11 AM | #4 |
ROAD COURSE JUNKIE
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Already changed mine and didn't do anything.
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05-29-2013, 09:30 AM | #5 |
I got the TC/ST lights after replacing all the rear bushings because my toe was so far our that the wheel speed was different from side to side. The next day I got it alligned and problem solved. Might be worth a look
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05-29-2013, 09:43 AM | #6 | |
Drives: GM Vehicles Join Date: Jun 2010
Location: Michigan
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Quote:
Sorry you appear to be having some issues with your ABS. If you would private message me you VIN and current mileage, I will pull up your vehicle to see if we have any information that may help you here. Reggie B. Chevrolet Customer Care
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05-29-2013, 09:47 AM | #7 | |
corner barstool sitter
Drives: 08 Mustang GT, 19 WRX Join Date: Jul 2012
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Quote:
Beyond that, it's something that you need to have looked at professionally. Across the keyboard we can only make guesses. Norm |
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05-29-2013, 09:51 AM | #8 | |
corner barstool sitter
Drives: 08 Mustang GT, 19 WRX Join Date: Jul 2012
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By any chance, are you also turning left when this happens? Norm |
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05-29-2013, 10:00 AM | #9 |
ROAD COURSE JUNKIE
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Nope norm only happens downshifting and braking. No downshift and just use the brakes it's fine.
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05-29-2013, 10:19 AM | #10 |
Drives: pleather and Chiclets Join Date: Mar 2012
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thats a new one. is it torque management and traction control making the abs freak out?
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05-29-2013, 10:49 AM | #11 |
corner barstool sitter
Drives: 08 Mustang GT, 19 WRX Join Date: Jul 2012
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I'm still thinking that ST is getting involved somehow. Typically, stability control systems will activate a single brake to prevent what it sees as oversteer or really heavy understeer starting to happen. Braking the outside front (in a turn) to reduce oversteer is one possible action.
Norm |
05-29-2013, 11:11 AM | #12 | ||
ROAD COURSE JUNKIE
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Quote:
Quote:
Not trying to thread jack OP but maybe this gives you info on your problem.
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05-29-2013, 11:25 AM | #13 |
corner barstool sitter
Drives: 08 Mustang GT, 19 WRX Join Date: Jul 2012
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Posts: 6,990
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If ST thinks that the rear of the car is about to step out to the right (oversteer in a left turn), it'll probably apply the RF brake as a means of dragging the car back in line with the direction that it thinks you're headed in, while slowing you down. Applying any other brake tends to make things worse, either by making the rear even "looser" by throwing away RR lateral grip that you really need or by dragging the left front brake which would exaggerate the yaw rotation directly. Since I suspect that it's a left rear matter, I'd expect that braking that wheel would lock it up for sure, which you definitely wouldn't want happening.
Norm |
05-29-2013, 12:42 PM | #14 |
corner barstool sitter
Drives: 08 Mustang GT, 19 WRX Join Date: Jul 2012
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Have you installed new brake pads on just the front or just the rear? Front pads with significantly more aggressive bite than the rear pads can cause exactly this situation as well. So might rear brakes that are a lot less grippy, except that you'd be more apt to notice having to stand on the brake pedal a bit harder.
Norm |
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