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#648853 - 09/21/05 04:32 PM 4Runner Vibration and Shimmy
kvcrunner Offline
Need a Spot
Registered: 08/17/05
Posts: 8
I'm having vibration/shimmy of my steering wheel when traveling over 60mph, and sometimes at lesser speeds. When I hit bumps in the road, my steering wheel shimmy's. I've had a wheel balance recently, and I've had an alignment a couple months ago. Could it be a bad steering stabilizer/damper? Is there any other components or maintenance items I should consider? Is there anybody having the same issues? I do have some vibration when i brake, so I'm guessing my rotors are warped, again! Can this be related? I had them replaced at 20,000 miles.
Thanks
KVCRunner
2000 4WD 4Runner
60,000 miles
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From the Off-Road World
#648854 - 09/21/05 10:36 PM Re: 4Runner Vibration and Shimmy [Re: kvcrunner]
4mudder Offline
Wheeler
Registered: 01/02/05
Posts: 178
Loc: Maryland
Unless your rotors are really bad they shouldnt vibe when not braking. It does sound like your damper is shot. I'd replace it b4 other things simply because its not too expensive.
_________________________
89 K5 Blazer,TBI 350, 700R4, 6" lift, 40" groundhawgs,3/4 ton 14 bolt rear, 3/4 ton 10 bolt front, 4.88:1 Gears
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#648855 - 09/22/05 10:54 PM Re: 4Runner Vibration and Shimmy [Re: kvcrunner]
kvcrunner Offline
Need a Spot
Registered: 08/17/05
Posts: 8
Thanks. Do you happen to know what the damper looks like and where it is located. I looked under the truck and didn't see anything looking like a shock absorber? What should I be looking for? How much am I looking to spend for repair at the toyota dealer and what exactly should I ask to replace. Thanks again.
-kvcrunner
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#648856 - 09/23/05 04:25 AM Re: 4Runner Vibration and Shimmy [Re: kvcrunner]
4mudder Offline
Wheeler
Registered: 01/02/05
Posts: 178
Loc: Maryland
if your going to the dealer just tell them to replace your steering damper. It should be in front of the drag link and looks just like a shock w/out the rubber dust boot it wil have a metal protective cover over the rod and if you dont see it then its not there and thats your prob.
_________________________
89 K5 Blazer,TBI 350, 700R4, 6" lift, 40" groundhawgs,3/4 ton 14 bolt rear, 3/4 ton 10 bolt front, 4.88:1 Gears
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#648857 - 09/23/05 07:47 AM Re: 4Runner Vibration and Shimmy [Re: 4mudder]
Anonymous
Unregistered

3RD generation 4Runners like yours do not have steering dampners, if you are talking about the 2000 model listed on your signature. Those are on the old solid axle 4Runners only, I believe. You might look at your tires for uneven tread wear, cupping, etc., which can cause what you describe, and have the alignment checked again, too. Other possibilities are your CV axle bearings or possibly your steering rack, which usually will just cause the truck to wander at speed (the rack, not the CV bearings), rather than causing a shimmy and shake!

It does sound like your brake rotors are warped, as well, since you feel it in your pedal, too. That's more than likely a seperate issue from your high speed shimmy. Also, there's a notice on the board about some recent recalls concerning steering issues from Toyota. Might want to do a search and see if your vehicle is included in that. You never know. Hope this helps.
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#648858 - 10/02/05 04:36 AM Re: 4Runner Vibration and Shimmy [Re: kvcrunner]
larsdennert Offline
Body Damage is Cool
Registered: 01/06/01
Posts: 1656
Loc: Pasadena, CA USA
Also check the rack bushings. Have someone turn the steering wheel and watch the rack for excessive side movement. Chances are it is alignment though. 3rd Gens are very caster sensitive and will shimmy if they don't have enough. Also try rotating the tires and see if it goes away.

As far as brake vibration, see the other recent post or my web site.
_________________________
Lars,
Gold Coast Cruisers |My 4Runner
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