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Discussion Starter #1
So about 6 months back driving home from work my car went from smooth as silk to vibrating like I was driving over rumble strips.
This was at highway speeds 55-60 MPH. The steering wheel was not affected and did not shake or vibrate. this went away once I came to a stop and did not occur again.
A month goes by and It happens again. Same thing at highway speeds only and goes away after stopping. This occurs anywhere from as quickly as 4 days apart to a few weeks apart.
This has occurred with the original Michelin's to the Winters I bought last year and put on about a month ago(same rims). I'm pretty confident it isn't the tires.
I mentioned all this to my local dealer along with another issue I was having. The dealer took care of my other issue but of course could not duplicate the problem.
Another weird thing is that it has occurred only when driving home from work. Most times almost in the exact same spot but not always. Once it occurred right after changing to my winter tires at about 55 MPH.
It went away after coming to a stop and further into the trip I again went back to highway speeds it it did not occur.
A couple more things, I tried turning my wheel back and forth to see if I noticed any change but no there wasn't. It seems to be a little more pronounced when coasting.
There is a rumble sound as well. I can't tell if it's isolated to the front or back. It has happened both when the car is in RWD and AWD. Speeds have been between 55-65 MPH
I researched on this site other shaking problems and they all seem to have a consistency of the problem always happening in one way or another not spread apart like mine.
My one way travel to work is about 15 miles so this has been more of an annoyance then a real concern. I'm looking for ideas to check besides the tires which as I mentioned I don't believe to be the problem.
It just baffles me that this happens so intermittently. The car is a 2018 300 LTD AWD about 25000 miles.It has been mostly flawless up to this point.
Thanks for any insight you can give me.
 

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I know you said it's happened with different tires. Unrelated but we had two different work trucks that is happened to . Very random. It would hit a bump and send the wheels oscillating. This one turned out to be a back shock of all things. The second truck was balance. We had them balanced again( vibration was felt in truck not wheel). We insisted the be re-balanced and problem disappeared.
Normally I'd say vibration in the wheel is either bearing or break related. I've been out of the loop for while but tie rods used to be a big problem but I'm sure that's been rectified. Wish I could of more help.
If you do get to the root cause please post the findings so other who may experience it will have a reference.
Best of luck and hopefully it's something silly
 

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Discussion Starter #3
Thanks for your response. If I ever do figure it out I will share.
It happened again yesterday only 2 days since the last time. Almost in exactly the same spot where most of the incidences have taken place.
It's on the Interstate going around a gentle curve and a moderate decline. Seems it occurs when coasting/decelerating.
I'm going to stop again at the dealer to relay this sometime in the near future.
 

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Or just stay away from that road
:eek:
 

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Thanks for your response. If I ever do figure it out I will share.
It happened again yesterday only 2 days since the last time. Almost in exactly the same spot where most of the incidences have taken place.
It's on the Interstate going around a gentle curve and a moderate decline. Seems it occurs when coasting/decelerating.
I'm going to stop again at the dealer to relay this sometime in the near future.
Hi VT300LTD,
I do apologize for the trouble you are experiencing with your 300. Please know that our team would be more than happy to provide an additional layer of assistance if you do end up connecting with your dealer. What we can do is escalate a case on your behalf so that one of our Case Specialists could work alongside your dealer to find a potential solution to the concerns you’re currently experiencing. Feel free to follow up with us via private message if this would be of interest.
Rob
ChryslerCares
 

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So about 6 months back driving home from work my car went from smooth as silk to vibrating like I was driving over rumble strips.
This was at highway speeds 55-60 MPH. The steering wheel was not affected and did not shake or vibrate. this went away once I came to a stop and did not occur again.
A month goes by and It happens again. Same thing at highway speeds only and goes away after stopping. This occurs anywhere from as quickly as 4 days apart to a few weeks apart.
This has occurred with the original Michelin's to the Winters I bought last year and put on about a month ago(same rims). I'm pretty confident it isn't the tires.
I mentioned all this to my local dealer along with another issue I was having. The dealer took care of my other issue but of course could not duplicate the problem.
Another weird thing is that it has occurred only when driving home from work. Most times almost in the exact same spot but not always. Once it occurred right after changing to my winter tires at about 55 MPH.
It went away after coming to a stop and further into the trip I again went back to highway speeds it it did not occur.
A couple more things, I tried turning my wheel back and forth to see if I noticed any change but no there wasn't. It seems to be a little more pronounced when coasting.
There is a rumble sound as well. I can't tell if it's isolated to the front or back. It has happened both when the car is in RWD and AWD. Speeds have been between 55-65 MPH
I researched on this site other shaking problems and they all seem to have a consistency of the problem always happening in one way or another not spread apart like mine.
My one way travel to work is about 15 miles so this has been more of an annoyance then a real concern. I'm looking for ideas to check besides the tires which as I mentioned I don't believe to be the problem.
It just baffles me that this happens so intermittently. The car is a 2018 300 LTD AWD about 25000 miles.It has been mostly flawless up to this point.
Thanks for any insight you can give me.
I have a 2013 300c AWD. Around 65,000 miles this vibration started happening with my car. A lot of times it was around 1900 - 2100 rpms, and I first noticed as I was going up a hill as I would leave my home. It was also intermittent and would happen normally between 30 and 45 mph. I took it to 3 dealerships. Because it was intermittent they had a hard time diagnosing. I went on drives with the mechanics and also recorded the sound so I could play it for them. My steering was never effected. Finally, the service manager at the 3rd dealership was able to diagnose. When we went for a ride, it vibrated going up a slight grade. Over time, it seemed like it was happening more often. At 71,572 miles, they did the following and the problem was solved. Checked and found torque converter shudder. Replaced the torque converter. Upon replacing the torque converter, they found the 4WD adapter on output shaft was loose and the nut was backed off. This contributed noise to the shudder. They also replaced the Torque Converter Output Seal, and 4WD Adapter.

I was so happy the service manager at South County Dodge in St. Louis was able to diagnose and resolve this problem.
 

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Discussion Starter #7
So I brought it back in to the dealer yesterday for this problem and my high beams not working in cold weather-below 10 degrees F.
Still not able to duplicate the vibrating issue. They checked the PCM and TCM for updates but they were up to date. Also checked the CV boots-no issues.
They told me on the High beam issue that FCA is aware of the problem but there is no fix yet.
Meantime I will continue to monitor the Vibrating/shaking issue. If I think of something for them to check or if it starts happening more frequent, I'll bring it back to the dealer.
If I ever find out the problem, I will post it.
 

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So about 6 months back driving home from work my car went from smooth as silk to vibrating like I was driving over rumble strips.
This was at highway speeds 55-60 MPH. The steering wheel was not affected and did not shake or vibrate. this went away once I came to a stop and did not occur again.
A month goes by and It happens again. Same thing at highway speeds only and goes away after stopping. This occurs anywhere from as quickly as 4 days apart to a few weeks apart.
This has occurred with the original Michelin's to the Winters I bought last year and put on about a month ago(same rims). I'm pretty confident it isn't the tires.
I mentioned all this to my local dealer along with another issue I was having. The dealer took care of my other issue but of course could not duplicate the problem.
Another weird thing is that it has occurred only when driving home from work. Most times almost in the exact same spot but not always. Once it occurred right after changing to my winter tires at about 55 MPH.
It went away after coming to a stop and further into the trip I again went back to highway speeds it it did not occur.
A couple more things, I tried turning my wheel back and forth to see if I noticed any change but no there wasn't. It seems to be a little more pronounced when coasting.
There is a rumble sound as well. I can't tell if it's isolated to the front or back. It has happened both when the car is in RWD and AWD. Speeds have been between 55-65 MPH
I researched on this site other shaking problems and they all seem to have a consistency of the problem always happening in one way or another not spread apart like mine.
My one way travel to work is about 15 miles so this has been more of an annoyance then a real concern. I'm looking for ideas to check besides the tires which as I mentioned I don't believe to be the problem.
It just baffles me that this happens so intermittently. The car is a 2018 300 LTD AWD about 25000 miles.It has been mostly flawless up to this point.
Thanks for any insight you can give me.
 

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Have someone check the Torque Converter and the Torque converter Output Seal and the 4WD adapter on output shaft. and theChecked and found torque converter shudder. My issues were similar and it took many miles and much time to get diagnosed because it was intermittent. Finally a service technician found these problems. All is good since my 2013 300AWD was repaired.
 

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Discussion Starter #10
I did mention that to them and they said it couldn't be that as the issue mostly happens when coasting.Sometimes under very light acceleration.
I've never had it happen going up a hill.
 

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I had it happening on level ground also. First noticed on hill, but continually worsened. Normally, I was accelerating though if I remember correctly.
 

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I have a 2013 300c AWD. Around 65,000 miles this vibration started happening with my car. A lot of times it was around 1900 - 2100 rpms, and I first noticed as I was going up a hill as I would leave my home. It was also intermittent and would happen normally between 30 and 45 mph. I took it to 3 dealerships. Because it was intermittent they had a hard time diagnosing. I went on drives with the mechanics and also recorded the sound so I could play it for them. My steering was never effected. Finally, the service manager at the 3rd dealership was able to diagnose. When we went for a ride, it vibrated going up a slight grade. Over time, it seemed like it was happening more often. At 71,572 miles, they did the following and the problem was solved. Checked and found torque converter shudder. Replaced the torque converter. Upon replacing the torque converter, they found the 4WD adapter on output shaft was loose and the nut was backed off. This contributed noise to the shudder. They also replaced the Torque Converter Output Seal, and 4WD Adapter.

I was so happy the service manager at South County Dodge in St. Louis was able to diagnose and resolve this problem.
Question on the cost of the above repairs.
 
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