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Author
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Topic: Steering Wheel Vibration
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PeninsulaCOBRA
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Member # 5549
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posted
 
 
1999 Convertible Roush.
at 42-52mph it vibrates.
Rims are not bent, rotors are new.
I dont get it? ANY idea?
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"U feel like u run it huh? Now u know how we feel"-Kanye
Posts: 411 | From: Burlingame to San Diego | Registered: Apr 2005
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Sikwidit-blumaxx88
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Member # 11046
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posted
Tires are possibly out of balance .
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SikwidiT cc
1988 5.0
Posts: 507 | From: East bay | Registered: Jun 2011
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KevinK
Tech Mod
Member # 9234
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posted
Flat spots on the tires from sitting?
Posts: 197 | From: San Mateo, CA | Registered: Jun 2009
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Santos1986gt
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Member # 10513
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posted
Get the tires balanced.
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86gt minor upgrades(under construction)
2012 Focus SE (racing chip)?
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Xgotsome4me4
Posts: 271 | From: East Palo alto | Registered: Dec 2010
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fredfifty
Since
9/2010
Member # 10320
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posted
are the rims balanced? maybe weights flew off...FYI put the best balanced wheels in the front.
Or possibly your driveshaft took a dump...
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RIP EDSON VELORO
IM A NOOB, EXCUSE ME. THANKS.
92 LX Coupe 5.0 CARB'd BOLT-ONS SMOG LEGAL
62 Rag Impala
Posts: 4948 | Registered: Sep 2010
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Camara90
1%
Member # 134
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posted
Check your ball joints. My car had a similar vibration from worn ball joints.
[ August 25, 2011, 12:42 PM: Message edited by: Camara90 ]
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92GT,stock short block,9:1 TFS 170's,perf rpm,custom cam,1 5/8 shorties,C4 trans.
std. 356hp, 350tq
11.85@111.9mph on motor.
Posts: 2351 | From: 707 | Registered: Jan 2001
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wilber650
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Member # 10360
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posted
quote:
Originally posted by Santos1986gt:
Get the tires balanced.
+1
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2014 mustang Gt
2004 f150 fx4
1998 Cobra sold
1994 Gt sold
Posts: 522 | From: antioch | Registered: Oct 2010
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Luke87GT
Lay'n more stripes
than Caltrans
Member # 21
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posted
Anyone of these things can cause steering wheel vibration/shimmy
1.) Tire/wheel balance (most common) -> Some of the cheap replica wheels are tougher to balance due to lower quality control measures
2.) Inner/outer tie rods
3.) Rack bushings
4.) Control arm bushings
5.) Balljoints
6.) Worn Rag Joint
7.) Believe it or not, faulty struts/CC plate bushings can cause problems too
Since it is at a specific speed, my vote is wheel balance... And just because the machine says it is balanced, does not mean it is completely balanced. They make loaded balancers which will be more revealing than an unloaded balancers...
I once had a set of replica wheels balanced, and the problem was still there. Tried a friends OEM set of 03 Cobras, and the problem went away... I am pretty weary of overseas produced replica wheels in general.
Hate chasing steering wheels shimmy.
Best of luck.
[ August 25, 2011, 02:27 PM: Message edited by: Luke87GT ]
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Stangless
Posts: 7802 | From: San Mateo | Registered: Jul 2000
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Luke87GT
Lay'n more stripes
than Caltrans
Member # 21
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posted
Forgot to mention, first check that tire pressure.
I once had an issue with steering wheel shimmy after installing new tires. I noted that the tech put 35psi in one tire and 50psi in the other.
When I evened both out to about 33psi, the shimmy improved noticeably.
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Stangless
Posts: 7802 | From: San Mateo | Registered: Jul 2000
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PeninsulaCOBRA
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Member # 5549
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posted
slapped $1300 worth of new tires on and BAM the shakes are GONE thank goodness
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"U feel like u run it huh? Now u know how we feel"-Kanye
Posts: 411 | From: Burlingame to San Diego | Registered: Apr 2005
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