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  #25  
Old 07-29-2012, 06:16 PM
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Re: Wk2 Rear Knocking Noise Aussie GC Laredo

While my clunk issue is closer investigated by the service manager in conjuction with Chrysler I can't stop thinking about it. Probably because the official statement so far 'normal noise of self-leveling shocks' doesn't satisfy me.

For discussion:
In the Australian forum, some customers got their self-leveling shocks (SLS) replaced with standard shocks but kept their springs. The springs for the SLS are 'weaker' as the standards ones, because the SLS act partly as a spring as well, which is required to have the full functionality.
So keeping the original springs for the SLS together with new shocks is basically a different rear suspension setup (also caused a little sag in the end).
So far the background, coming to the point:
Looking at TSB 08-014-12 http://www.wk2jeeps.com/tsb/tsb_wk2_0801412.pdf which describes a fix for the SRTs clunking in the rear, the reason (and fix) for the clunking is described as:
"When the terrain switch is in the 'Auto/Snow' position the ADS system is in soft mode, the noise is the result of the cradle moving through full travel on the mounts and returning to the body stops. This occurs over single large events at low speeds, such as sharp speed bumps. The software update made available with this bulletin places the shocks into a firmer mode for rebound and eliminates this condition."

So my question would be, could the reason for SLS clunking be the same and just because the standard springs are kept the suspension is changed in such a way that the result is the same as for the SRT fix "no moving of the cradle until body stops"?

From my understanding, SLS with standard springs is actually the opposit; softer than firmer but who knows.
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  #26  
Old 07-29-2012, 09:34 PM
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Re: Wk2 Rear Knocking Noise Aussie GC Laredo

Quote:
Originally Posted by chonore View Post
Speaking of shocks, my new 2012 Jeep Grand Cherokee is a very uncomfortable ride. I live in New Orleans and we have less than perfect streets. This Jeep feels like it is walking instead of riding. I feel every bump in the road, every rock, every line in the concrete. This is the worse driving vehicle I have ever driven. It feels as if there are no shocks.
Mine is the same. It drove good for like 3 days I think. Been bumpy ever since. Feels like the wheels get thrown down into bumps with little absorption or dampening. I think this is the week I get to take her back and start addressing the list of things. I'll keep ya. Posted. Bummer for sure. Not happy the ride is almost like my almost paid off Honda element before I traded it for this. 3.6 OS w/QL
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  #27  
Old 07-31-2012, 07:52 PM
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Re: Wk2 Rear Knocking Noise Aussie GC Laredo

Some news,
Received a call back from Chrysler Case Manager. He explained to me that the problem is well known within Chrysler, that they are working on a fix which will come soon. Three major things he stated:
1) The car is safe to drive and no follow on damage to be expected.
2) Reason for the clunking noise with the self-leveling shocks is, that the shocks are too short.
3) All owners of GCs with self leveling shocks will be informed when the fix is available. Definitly those who made a complain to their dealership.

Not sure how too short shocks actually can cause this, but the case manager seemed to be well educated on the matter so I feel well treated and informed. Just hoping they bring out the fix fast.
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  #28  
Old 07-31-2012, 08:05 PM
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Re: Wk2 Rear Knocking Noise Aussie GC Laredo

Wow thanks for the update! I will pass that info along to my dealer next week!

At least it is being addressed and no real harm to the vehicle!
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  #29  
Old 08-01-2012, 01:18 AM
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Re: Wk2 Rear Knocking Noise Aussie GC Laredo

And a WOW from me will done thanks for the update this is great news. Makes me more confident with Chrysler products. Hop this applies to us down under in Australia.
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  #30  
Old 08-01-2012, 05:01 AM
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I can't wait to have it fixed!
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  #31  
Old 08-01-2012, 08:05 AM
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Re: Wk2 Rear Knocking Noise Aussie GC Laredo

Man I hope that is the truth, that is the one issue that has me pulling my hair out right now!
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  #32  
Old 08-01-2012, 03:44 PM
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Re: Wk2 Rear Knocking Noise Aussie GC Laredo

Will also follow it up with the dealer also.
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Old 08-01-2012, 04:35 PM
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Re: Wk2 Rear Knocking Noise Aussie GC Laredo

haven't really experienced this issue, but want to subscribe to this thread to see what the outcome is, just incase it develops further down the track
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  #34  
Old 08-03-2012, 02:20 PM
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Re: Wk2 Rear Knocking Noise Aussie GC Laredo

I have this same thing happen to me with my 2012 WK2. Did they finally did the TSB for the repair of this sound???
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  #35  
Old 08-03-2012, 02:34 PM
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Re: Wk2 Rear Knocking Noise Aussie GC Laredo

from what we know they are working on the fix. I am bringing mine in Monday 8/6 and I will update you as to what I was told etc etc.
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  #36  
Old 08-05-2012, 05:26 PM
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Re: Wk2 Rear Knocking Noise Aussie GC Laredo

I've had my wk2 for 6 days and already noticed the clunking sound. I guess I'll swing by the service department on Monday and see what they say about it.
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