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View Poll Results: Does your 2014 GC shimmy?
Yes - I have 20" wheels 62 41.61%
Yes - I have power telescopic steering column 47 31.54%
Yes - I have the V8 26 17.45%
Yes - I have the V6 54 36.24%
No - I have the V6 38 25.50%
No - I have the V8 19 12.75%
No - I don't have a power telescopic steering column 10 6.71%
No - I don't have 20" wheels 25 16.78%
Multiple Choice Poll. Voters: 149. You may not vote on this poll

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  #145  
Old 11-21-2013, 06:33 PM
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Re: 2014 GCs that have steering shimmy over 60MPH

I too had a steering wheel shimmy 65-75 mph from day one on my 2014 overland with 20" Fortera tires. I test drive 4 new summits and they all did it. I purchased my jeep 1 1/2 hour from home to get a good price. My first attempt was to bring it to my local dealer who road forced the two front tire only. It still had the shimmy but not as bad. The dealer told me he could not help me any further. I started a case file with chrysler and took it to a different dealer. The mechanic stated he found a slight vibration caused by the stones in the asphalt. Then I took the service manager for a ride and he stated they all do it and the 20" tires are worst. He also stated it is caused by the electric steering assist, but he road forced all 4 tires with the hunter 9700 machine. He stated the road force came in at 9, 12, 10 and 5 pounds. When I drove it home the vibration through the vehicle was better but the steering wheel shimmy was worst. I called chrysler the day after only to find out the dealer had closed the case stating it was the nature of the vehicle. I re-opened the case with chrysler and took it to the dealer where I purchased the Jeep. After 4 hours the shimmy was finally gone. The dealer stated one wheel had a road force of 36# and got it down to 24, another wheel was at 26 and got it down to 17 and the other 2 wheels came in at 8 and 12 pounds, and two of the wheel were off balance by .75 oz . He put the 8 & 12# road force tires in the front and the 24 & 26# in the rear. I drove the vehicle home with no shimmy at all. Upon reaching 75mph I felt a vibration throughout the seat. I stopped by the goodyear store and they replaced the two rear tires and got the road force at 5 and 9 pounds and my grand cherokee drives smooth as silk up to 90 mph. To make a long story short, it is the tires, they just have to be road forced balanced on a good calibrated machine and if they can't get the tires under 12# then get a new tire. By the way goodyear paid for the 2 rear tires after I called them and got a case number. I had a shimmy and vibration for 2,200 miles. My front rotors were also replaced at 725 miles due to steering wheel shimmy when the brakes were applied at 45 mph. After 7 weeks of hating my jeep I now love it!!!
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  #146  
Old 11-21-2013, 06:47 PM
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Quote:
Originally Posted by bryans View Post
I too had a steering wheel shimmy 65-75 mph from day one on my 2014 overland with 20" Fortera tires. I test drive 4 new summits and they all did it. I purchased my jeep 1 1/2 hour from home to get a good price. My first attempt was to bring it to my local dealer who road forced the two front tire only. It still had the shimmy but not as bad. The dealer told me he could not help me any further. I started a case file with chrysler and took it to a different dealer. The mechanic stated he found a slight vibration caused by the stones in the asphalt. Then I took the service manager for a ride and he stated they all do it and the 20" tires are worst. He also stated it is caused by the electric steering assist, but he road forced all 4 tires with the hunter 9700 machine. He stated the road force came in at 9, 12, 10 and 5 pounds. When I drove it home the vibration through the vehicle was better but the steering wheel shimmy was worst. I called chrysler the day after only to find out the dealer had closed the case stating it was the nature of the vehicle. I re-opened the case with chrysler and took it to the dealer where I purchased the Jeep. After 4 hours the shimmy was finally gone. The dealer stated one wheel had a road force of 36# and got it down to 24, another wheel was at 26 and got it down to 17 and the other 2 wheels came in at 8 and 12 pounds, and two of the wheel were off balance by .75 oz . He put the 8 & 12# road force tires in the front and the 24 & 26# in the rear. I drove the vehicle home with no shimmy at all. Upon reaching 75mph I felt a vibration throughout the seat. I stopped by the goodyear store and they replaced the two rear tires and got the road force at 5 and 9 pounds and my grand cherokee drives smooth as silk up to 90 mph. To make a long story short, it is the tires, they just have to be road forced balanced on a good calibrated machine and if they can't get the tires under 12# then get a new tire. By the way goodyear paid for the 2 rear tires after I called them and got a case number. I had a shimmy and vibration for 2,200 miles. My front rotors were also replaced at 725 miles due to steering wheel shimmy when the brakes were applied at 45 mph. After 7 weeks of hating my jeep I now love it!!!

So moral of the story is very few places know what they are doing when it comes to balancing. This has been my experience too.
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  #147  
Old 11-21-2013, 06:55 PM
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Re: 2014 GCs that have steering shimmy over 60MPH

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Originally Posted by bryans View Post
I too had a steering wheel shimmy 65-75 mph from day one on my 2014 overland with 20" Fortera tires. I test drive 4 new summits and they all did it. I purchased my jeep 1 1/2 hour from home to get a good price. My first attempt was to bring it to my local dealer who road forced the two front tire only. It still had the shimmy but not as bad. The dealer told me he could not help me any further. I started a case file with chrysler and took it to a different dealer. The mechanic stated he found a slight vibration caused by the stones in the asphalt. Then I took the service manager for a ride and he stated they all do it and the 20" tires are worst. He also stated it is caused by the electric steering assist, but he road forced all 4 tires with the hunter 9700 machine. He stated the road force came in at 9, 12, 10 and 5 pounds. When I drove it home the vibration through the vehicle was better but the steering wheel shimmy was worst. I called chrysler the day after only to find out the dealer had closed the case stating it was the nature of the vehicle. I re-opened the case with chrysler and took it to the dealer where I purchased the Jeep. After 4 hours the shimmy was finally gone. The dealer stated one wheel had a road force of 36# and got it down to 24, another wheel was at 26 and got it down to 17 and the other 2 wheels came in at 8 and 12 pounds, and two of the wheel were off balance by .75 oz . He put the 8 & 12# road force tires in the front and the 24 & 26# in the rear. I drove the vehicle home with no shimmy at all. Upon reaching 75mph I felt a vibration throughout the seat. I stopped by the goodyear store and they replaced the two rear tires and got the road force at 5 and 9 pounds and my grand cherokee drives smooth as silk up to 90 mph. To make a long story short, it is the tires, they just have to be road forced balanced on a good calibrated machine and if they can't get the tires under 12# then get a new tire. By the way goodyear paid for the 2 rear tires after I called them and got a case number. I had a shimmy and vibration for 2,200 miles. My front rotors were also replaced at 725 miles due to steering wheel shimmy when the brakes were applied at 45 mph. After 7 weeks of hating my jeep I now love it!!!
Another example of how the cheap crappy tires they put on the GC can ruin the view of an otherwise good vehicle. I don't see how it can be worth the reputation damage to Jeep having their 50k flag ship vehicles shaking down the road so they can save nickel. Yes not all of the GCs have the issue but a lot do and enough that they should think twice about it. They don't need to put ultra expensive tires on it but just spend the money to put something on that will ride smooth that's not asking a lot. Those forteras are half the price of anything else in that size category and you obviously get what you pay for.
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  #148  
Old 11-21-2013, 07:00 PM
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Re: 2014 GCs that have steering shimmy over 60MPH

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Originally Posted by not_too_shabby View Post
So moral of the story is very few places know what they are doing when it comes to balancing. This has been my experience too.
If those tires were not so substandard and out of round it would not take a rocket scientist to get the balancing right.
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  #149  
Old 11-21-2013, 07:10 PM
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Re: 2014 GCs that have steering shimmy over 60MPH

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Originally Posted by silvermax04 View Post
If those tires were not so substandard and out of round it would not take a rocket scientist to get the balancing right.
You would think. Unfortunately, I've said it all along, many so called techs don't know how to properly operate the Hunter GSP9700 Road Force Balance machine. When done correctly, it's amazing what it can do.
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  #150  
Old 11-21-2013, 07:22 PM
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Originally Posted by silvermax04 View Post
Another example of how the cheap crappy tires they put on the GC can ruin the view of an otherwise good vehicle. I don't see how it can be worth the reputation damage to Jeep having their 50k flag ship vehicles shaking down the road so they can save nickel. Yes not all of the GCs have the issue but a lot do and enough that they should think twice about it. They don't need to put ultra expensive tires on it but just spend the money to put something on that will ride smooth that's not asking a lot. Those forteras are half the price of anything else in that size category and you obviously get what you pay for.
Actually a lot of the Michelin Lattitudes do it as well. Mine did until properly balanced and road force compensated. Now, I'm no Goodyear fan...I tend to believe a lot of their tires are simply square, but it's not all the tires.

The biggest issue is that the JGC suspension and steering is now "car sensitive." By that, I mean it has the same sensitivity to runout and balance that a smaller car would have--unfortunately with much larger wheels and tires and the mass that goes with them. A lot of techs will balance and road-force compensate a vehicle of this size to light truck specifications--which allow over 20lbs of variation in many cases. This vehicle really needs less than 12-15lbs max variation like a car--under 10 is most desirable, and the fronts should be as close to evenly matched between them as possible in terms of that variation.
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Old 11-21-2013, 07:32 PM
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Re: 2014 GCs that have steering shimmy over 60MPH

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Originally Posted by Peter_K View Post
Actually a lot of the Michelin Lattitudes do it as well. Mine did until properly balanced and road force compensated. Now, I'm no Goodyear fan...I tend to believe a lot of their tires are simply square, but it's not all the tires.

The biggest issue is that the JGC suspension and steering is now "car sensitive." By that, I mean it has the same sensitivity to runout and balance that a smaller car would have--unfortunately with much larger wheels and tires and the mass that goes with them. A lot of techs will balance and road-force compensate a vehicle of this size to light truck specifications--which allow over 20lbs of variation in many cases. This vehicle really needs less than 12-15lbs max variation like a car--under 10 is most desirable, and the fronts should be as close to evenly matched between them as possible in terms of that variation.
agree with you on the sensitivity of the vehicle but that means they spend a little more to put a better quality tire on it to help compensate for that. Yes also agree that not all of those tires are bad but there are a higher percentage that are bad and out of round then normal. In other words cheap
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  #152  
Old 11-21-2013, 08:12 PM
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My cooper seems do it as well definitely NOT the tires
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  #153  
Old 11-21-2013, 08:24 PM
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Re: 2014 GCs that have steering shimmy over 60MPH

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agree with you on the sensitivity of the vehicle but that means they spend a little more to put a better quality tire on it to help compensate for that. Yes also agree that not all of those tires are bad but there are a higher percentage that are bad and out of round then normal. In other words cheap
Eh, I won't argue with you about the Goodyears--they definitely aren't helping matters. And unfortunately tires are often an "afterthought" to many auto manufacturers.
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  #154  
Old 11-22-2013, 05:34 PM
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Re: 2014 GCs that have steering shimmy over 60MPH

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Yes and Yes. The new vehicle was built late August. Unbelievable the difference between the two. When everything works day 1, the experience is awesome.

My vehicle arrived at the dealer and I test drove it today to make sure there wasn't any vibration. The vibration and bump steer is non existent in the new vehicle . The transmission also shifts better . I believe there were updates to the software .
How much paperwork was involved in switching vehicles?
thanks
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  #155  
Old 11-22-2013, 06:14 PM
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Re: 2014 GCs that have steering shimmy over 60MPH

Make a suggestion for balance issues find the tire place in your area that handles tires fro track day junkies especially with the BMWCCA and PCA.
Their staff will know how to do a proper balance. My tire place in MD can also balance the tire/wheel while they are on the vehicle.

This could be a wheel issue???
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  #156  
Old 11-23-2013, 10:04 AM
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Quote:
Originally Posted by BobsWK2 View Post

You would think. Unfortunately, I've said it all along, many so called techs don't know how to properly operate the Hunter GSP9700 Road Force Balance machine. When done correctly, it's amazing what it can do.
I agree.... however I did have my old Envoy Forteras road forced while I watched and they did a great job. BUT! Forteras are "Good4-1Years" so about 11 months in the problems come back!

Again why there is Michelins installed on my Diesel before I even picked it up.
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