996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

Question: why is my steering wheel shaking?

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Old Apr 7, 2008 | 04:43 PM
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Question: why is my steering wheel shaking?

Hey fellas,

I have JIC Cross coilovers, rear control arm, anti-roll bars and new stock brakes. The car has been aligned recently. When I brake hard, my steering wheel shakes like crazy. The car doesn't pull in any direction under hard acceleration or braking. Everytime I come to a quick stop, the steering wheel shakes and vibrates. its driving me nuts. This can't be normal.
Thanks
 
Old Apr 7, 2008 | 04:53 PM
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Jack her up and give the front wheel/hub a little shake back and forth, I once found my steering ball joint had worked a few threads loose and caused the exact same issue. I know have all nuts/bolts painted.
 
Old Apr 7, 2008 | 04:53 PM
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if its shaking while ur are breaking only ,your rotors may warped .... were they looked at when u replaced your brakes ?
 
Old Apr 7, 2008 | 04:59 PM
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What did you change on the brakes?
 
Old Apr 7, 2008 | 05:54 PM
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If your car shakes slighly under really hard braking you might be experiencing the ABS controller feedback as it acts like a stepper motor very quickly applying and unapplying your brakes quickly to avoid lockup.

Does the car pull in either direction or does the car step out in the back?
 
Old Apr 7, 2008 | 06:09 PM
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Originally Posted by 996TT_STEVO
What did you change on the brakes?
Rotors were turned I believe and new pads. My breaks are squeaking a bit as well. I never noticed it until the brakes were replaced. you are probably right. I'll have my guy check it out.
 
Old Apr 7, 2008 | 06:12 PM
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Originally Posted by Evader
If your car shakes slighly under really hard braking you might be experiencing the ABS controller feedback as it acts like a stepper motor very quickly applying and unapplying your brakes quickly to avoid lockup.

Does the car pull in either direction or does the car step out in the back?
The car doesn't shake and it doesn't pull left or right. Its only the steering wheel and it shakes left/right extremely hard. I can let go of the wheel and brake in a completely straight line, but the wheel is shaking like crazy.
 
Old Apr 7, 2008 | 06:20 PM
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im guessing ur rotors
 
Old Apr 7, 2008 | 06:47 PM
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+1 I'm pretty sure it's the rotors as well.
 
Old Apr 7, 2008 | 06:49 PM
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Bad rotor turn I am guessing as well...........
 
Old Apr 7, 2008 | 06:59 PM
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Sounds like bad rotors....I know some say you can turn them....but you shouldn't.
 
Old Apr 7, 2008 | 08:15 PM
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thanks everyone. I was afraid of that. now more time in shop...more money. Thank God one of my cars is stock
 

Last edited by willcoxmd; Apr 7, 2008 at 08:34 PM.
Old Apr 7, 2008 | 08:18 PM
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If it is under braking, then rotors. If it happens while not braking then it may be that your wheel/tire needs balancing.
 
Old Apr 7, 2008 | 08:37 PM
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strictly under braking, otherwise very smooth. Am I the only one who has constant minor failures after making the mods? I wish I would have just left her alone....well maybe a chip and exhaust And well, ****, if you're going to chip and exhaust, might as well do........... yup a disease without a cure. Thanks fellas
 
Old Apr 7, 2008 | 08:44 PM
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ya...buy a cup car...not much needed there...well...other than...nevermind!
 
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