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Unread 06-17-2011, 11:13 AM   #1
cnickels87
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1995 ZJ 
 
Join Date: Mar 2011
Location: Waukesha, WI
Posts: 24
Steering wheel shake

Jeep 95 Grand Cherokee, 4.0l 4wd
2" coil spacers
31X10.5 tires

This one I just cant seem to figure out. I'm getting a slight steering wheel shake at around 50mph and 70 mph. Its weird it only happens around those speeds any faster or any slower and it goes away. It also dosen't shake all the time I would say I get this shake probably 70% of the time. Any ideas?

Just put new tires on and re-balanced
Replace steering stabilizer, with upgraded one from rough country
I have no play in my wheel from side to side and up and down

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Unread 06-17-2011, 11:48 AM   #2
HeavyArms
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2004 WJ 
 
Join Date: May 2010
Location: Cadillac, Michigan
Posts: 1,938
Try a front end alignment yet?
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Unread 06-17-2011, 08:14 PM   #3
TallyZJ
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1996 ZJ 
 
Join Date: Nov 2008
Location: Tallahassee, Florida
Posts: 1,140
Quote:
Originally Posted by cnickels87 View Post
Jeep 95 Grand Cherokee, 4.0l 4wd
2" coil spacers
31X10.5 tires

This one I just cant seem to figure out. I'm getting a slight steering wheel shake at around 50mph and 70 mph. Its weird it only happens around those speeds any faster or any slower and it goes away. It also dosen't shake all the time I would say I get this shake probably 70% of the time. Any ideas?

Just put new tires on and re-balanced
Replace steering stabilizer, with upgraded one from rough country
I have no play in my wheel from side to side and up and down
It is a tire related issue. One is either still out of balance or is out of round. Could also be a bent wheel. You need to go somewhere and have them "road force" balanced. This will match the tire imbalance to the rim imbalance and reduce the amount of weight required to bring it into balance. This will also tell you if you have a rim that is out of spec or a tire that is out of spec and needs to be replaced.

Make sure the place that does the work dynamically balances the tires (uses the machine on the setting that measures both edges of the rim for imbalance). Some places use center line balancing on larger tires.

Hopefully, for you, that you didn't buy some stupid "custom" wheel that has fake bead locks on the outer rim. These are extremely difficult to balance as they will not allow weights on the outside edge and require the use of adhesive weights on the inside next to the wheel spokes.
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Unread 06-17-2011, 08:41 PM   #4
cnickels87
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1995 ZJ 
 
Join Date: Mar 2011
Location: Waukesha, WI
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I don't think its a tire issue it did it before and after the new tires, i'v only had the new tires on for like a 1000 miles. They are mounted on stock 95 jeep rims.
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Unread 06-17-2011, 09:01 PM   #5
TallyZJ
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1996 ZJ 
 
Join Date: Nov 2008
Location: Tallahassee, Florida
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Quote:
Originally Posted by cnickels87 View Post
I don't think its a tire issue it did it before and after the new tires, i'v only had the new tires on for like a 1000 miles. They are mounted on stock 95 jeep rims.
It has to be tire or wheel or it wouldn't be speed dependent. Try swapping the front tires to the rear and drive it. If it doesn't change then rotate them in an "X" fashion and see if any movement of position changes anything. Not necessarily stopping the shake but ANY change in the speed in which it occurs or the felt shake itself.

You need to do this to absolutely rule out tire balance or out of round/bad wheel.

Also, check your tire pressure. Lower the PSI to 30lbs and see what happens.
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Unread 06-18-2011, 08:33 AM   #6
cnickels87
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1995 ZJ 
 
Join Date: Mar 2011
Location: Waukesha, WI
Posts: 24
Quote:
Originally Posted by TallyZJ View Post
It has to be tire or wheel or it wouldn't be speed dependent. Try swapping the front tires to the rear and drive it. If it doesn't change then rotate them in an "X" fashion and see if any movement of position changes anything. Not necessarily stopping the shake but ANY change in the speed in which it occurs or the felt shake itself.

You need to do this to absolutely rule out tire balance or out of round/bad wheel.

Also, check your tire pressure. Lower the PSI to 30lbs and see what happens.
This shake happened with the old tires and the exact same thing is happening with the new tires. I'm doubting its a tire problem. My buddy has some 31's on his jeep that were going to try swapping rims and tires and see if this will get rid of my shake. I'l report back when I get this done.
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Unread 06-19-2011, 09:21 AM   #7
ekamm
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Join Date: Feb 2011
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Mine has a bad cv ujoint and does the same thing.
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