[II kings 9:20]

Just picked CV up 20 min ago, THE VIBRATION IS 100% GONE. Dealer did the exhaust work, I drove at 55, 56, 57, 58, 59 and 60, light throttle, off throttle accelerating and decelerating and I could not induce a micron of vibration, it was billiard smooth and rock solid. It is amazing how annoying this vibe was, it seems to have taken on a life of it's own. I can't tell you how nice it is to have my car back to running as new.

Thanks to all who were persistent in figuring this out and posting the solution. Many of us never accepted "MDS" as the source of this vibe though I suspected the tranny (not water) or gears. Early on , I would never have gussed the exhaust.

The water in the tranny shudder is entirely unrelated to this vibe.

Parts that were replaced: 4581869AG Resonater
4581868AH Muffler
Two 4578363AA Nut

 

[moddog]

Glad to hear that the vibration in gone I always said it was the exhaust.
moddog

 

[Mr.DJ]

I hope this 'easy fix' is also the solution to similar problems currently being experienced by others...thanks for the update.

 

[jeepgrady]

Great news. It's been a long road for all of us. I guess that persistance pays. It's great to deal with people that continuously give feedback, both pro and con, to our related problems. That's what makes this forum the best.

 

[II kings 9:20]

I hope this 'easy fix' is also the solution to similar problems currently being experienced by others...thanks for the update.

This was indeed an easy fix only because of the info posted by members. I hope your vibe is this one and not the water tranny one which has entirely different symptoms detailed elsewhere

 

[HEMEEE]

Great news indeed! Glad your CV is well again... and thanks for posting the part numbers!

 

[rdmac]

Good news and good luck. I have the vibe but not that bad. Have been watching all this. Last month I provided my dealer the part numbers to replace but he said with out a TSB.. I have just today talked with him and faxed him the latest data from these posts. See what he says this time.

Bob

 

[moddog]

Good news and good luck. I have the vibe but not that bad. Have been watching all this. Last month I provided my dealer the part numbers to replace but he said with out a TSB.. I have just today talked with him and faxed him the latest data from these posts. See what he says this time.

Bob

When you talk to him don`t say vibration they the other dealers refer to it as Resonance . And there is service bulletin for the fix for the resonance in the exhaust system .I also think there is a number for it I will ask my dealer and post it.

 

[II kings 9:20]

I was driving down the freeway at 56mph today and cought a glimpse of myself in the mirror and I had a watermelon grin .

 

[05 300c]

I was driving down the freeway at 56mph today and cought a glimpse of myself in the mirror and I had a watermelon grin .

Cool!

 

[jcdc]

Anyone have any sugestions on vibrations that occur when braking between 70-80? Only occurs between these speeds.

 

[jeepgrady]

Do not say service bulletin. A TSB is a service bulletin, and we all know there is no TSB. Tell him to check the STAR network and use the reference number, K72884665 that was given to us by Resume Speed.

 

[Northern Rider]

I was driving down the freeway at 56mph today and cought a glimpse of myself in the mirror and I had a watermelon grin .

That's great news Kings.

Mine was in today, as well, to correct the 55 mph resonance (the new term). My service manger, Ron has researched the TSB re water in tranny and the bulletin on exhaust parts. He's also referenced this forum!

Here's the scoop.

He ordered in the parts to do the tranny flush. He tried to order the parts for the exhaust, but none are available (King, you took the last set ).


Today he did the tranny flush; resealed the filler tube and replaced the filter. He also did a software flash on the transmission control module as per TSB 21-009-04.

​

I picked up the car 3 hours ago. Here are the results.

Shifts are smoother. No throttle response delay whatsoever. Better downshifting. I took the car up to 55 mph in drive. The resonance is still there.


​

Conclusions:

The resonance problem is not coming from the transmission. It is most likely caused by a harmonic that is affecting the exhaust system. The work done on King's car yesterday, and others, confirms this.


​

... now if I can just get the parts.

 

[goddardzilla]

Credit where credit is due

So a search of the original thread

http://www.300cforums.com/forums/showthread.php?t=1467&page=18&pp=10&highlight=vibration+exhaust

shows these members were on the right track in offering an exhaust related solution

Scarbrs
Dixietwister
kampsvilleboy
Rambit
and another who will remain anonymous

"I may be wrong but I doubt it" -Charles Barkley.”

Zilla

 

[Northern Rider]

So a search of the original thread

http://www.300cforums.com/forums/showthread.php?t=1467&page=18&pp=10&highlight=vibration+exhaust

shows these members were on the right track in offering an exhaust related solution

Scarbrs
Dixietwister
kampsvilleboy
Rambit
and another who will remain anonymous

"I may be wrong but I doubt it" -Charles Barkley.”

Zilla

Thanks Zilla for the spadework on that. I would like to add a footnote. My service manager has a tech source embedded within DCX (shall we call him DeepThrottle ) that he goes to with vexing problems, from time to time.

He referenced this problem to DeepThrottle. Let it be known to all the good members on this forum that we are looked upon with some regard by many of the techies at DCX. The tech type postings are read by the company personnel, so I am told.

 

[moddog]

Do not say service bulletin. A TSB is a service bulletin, and we all know there is no TSB. Tell him to check the STAR network and use the reference number, K72884665 that was given to us by Resume Speed.

Is the STAR network a dealer network or can we get on it to?

 

[HEMEEE]

Thanks Zilla for the spadework on that. I would like to add a footnote. My service manager has a tech source embedded within DCX (shall we call him DeepThrottle ) that he goes to with vexing problems, from time to time.

He referenced this problem to DeepThrottle. Let it be known to all the good members on this forum that we are looked upon with some regard by many of the techies at DCX. The tech type postings are read by the company personnel, so I am told.

Good to know NR... sure wish there was a trickle-down effect to the dealership service dept. level.

 

[jeepgrady]

Unfortunately STAR is only accesable through the dealer. You can go to dealerconnect .com, but you need a password.

 

[II kings 9:20]

FWIW, my parts were back ordered and was supposed to be 2-3 weeks and came in at one week, there is hope.

 

[Northern Rider]

Good to know NR... sure wish there was a trickle-down effect to the dealership service dept. level.

Yeah, wouldn't that be nice. Let's hope this fine car can find better service departments.

The only reason I even started driving Chryslers was because of the excellent service of one particular dealer. When I went in today, I was greeted by the service advisor, the service manager and the Sales manager (the owner's son).

Then the owner, a fellow I got to know a few years ago through Rotary Club, came over. He enjoys performance cars and has a great collection of Mopar stuff from the fifties and sixties. He always wants to see my C and asks what mods are new. Today, I said "Get your wallet out, get your C (cool vanilla) and let's see who's the fastest off the light."

He grins and I go about picking my car up. I go outside and he pulls up beside me in an SRT-8! We didn't go playing because it was rush hour - and the SRT-8 was sold. He just rolled it out from PDI.

But - we had a good laugh. It's that kind of place.