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  #21  
Old 02-13-2011, 11:54 AM
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I have a 2011 Ram 2500. Non-MDS equipped.

Go over to the "4th Generation Ram" section/issues and read my thread titled "Noise with 2011 Ram Crew Cab".

Pay close attention to my last reply. My issue may be yours as well.

Good luck.
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  #22  
Old 02-13-2011, 04:18 PM
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Would getting a tuner such as a diablo preditor sport solve this issue?
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Old 02-13-2011, 04:42 PM
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i have a flutter type noise right at 37 to 42 MPH, i assume that it is right at the torque converter lock up point, where the computer is starting to decide whether to stay in 5th gear or shift down to 4th while driving on level ground.
I believe that between converter lock up, MDS, & Fuel Saver/ECO mode, it causes the fluttering noise, going from 8 cylinder to 4 cylinder & back & forth,
luckily i don't hear it often, as our towns speed limits are 35 & 40 mph, except in school zones, if i have to drive in the city of San Diego, i just put the trans in 4th
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  #24  
Old 02-13-2011, 05:15 PM
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Quote:
Originally Posted by GTyankee View Post
i have a flutter type noise right at 37 to 42 MPH, i assume that it is right at the torque converter lock up point, where the computer is starting to decide whether to stay in 5th gear or shift down to 4th while driving on level ground.
I believe that between converter lock up, MDS, & Fuel Saver/ECO mode, it causes the fluttering noise, going from 8 cylinder to 4 cylinder & back & forth,
luckily i don't hear it often, as our towns speed limits are 35 & 40 mph, except in school zones, if i have to drive in the city of San Diego, i just put the trans in 4th
That's interesting that you mentioned 37 mph. While the engineer was testing my truck, he noticed that the transmission at times would go into overdrive right at 37 mph. I was told by the service manager that the engineer noted that this was way too slow of a speed for the torque converter to lock-up, thus causing the engine lagg/vibration/noise.
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Old 02-13-2011, 06:24 PM
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what are your RPM's when you notice the noise/vibration?? and any idea if a tuner would override this issue by addressing the shift points?
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Old 02-13-2011, 07:00 PM
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Quote:
Originally Posted by doug713 View Post
what are your RPM's when you notice the noise/vibration?? and any idea if a tuner would override this issue by addressing the shift points?
Between 1300-1400. The truck has been at the dealer for a month now, so those numbers are my best recollection.

From information from the build engineer, they were going to work on a new software program to change the shift points, hopefully by the beginning of this week.

So, to answer your question, I would say yes. A tuner that would change the shift points would accomplish the same thing the build engineer is trying coming up with to fix my issue.
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Old 04-15-2011, 01:25 PM
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UPDATE!!!!!!!! I just got back from the dealership..... They did the K36 recall on the rearend of the truck and it fixed the annoying vibration I had.. (see earlier post) I hope that if anyone else is experiencing this that the recall will fix yours as well. Keep me/us posted please... good luck.
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Old 04-16-2011, 09:36 PM
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New to the forum, just bought a 2011 sport, got the same 1300 to 1600 vibration, took Chrysler engineer for a ride, he said it was a commond problem with the sport, he said he thought it might be a harmonic coming from the exhaust, anyway he said they were working on a solution.
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  #29  
Old 04-17-2011, 06:23 AM
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I just had my truck in to the dealer for CHECK ENGINE light on.
While it was there, I asked them to check out the vibration.
They took it for a road test and found nothing wrong.
They wrote on the sheet " customer possibly feeling MDS "
Funny, I never noticed this on the Ram I test drove before buying this one.
This is my first Ram after 5 F150s. I like the Ram, except for this.

Jeff

Last edited by FireWire; 04-17-2011 at 06:25 AM.
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  #30  
Old 04-30-2011, 11:39 PM
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At about 5500 Kms started to hear a high pitch whining with a lower pitch vibration beginnning at about 60kms/hr up to 110kms/hr at low load condition. It is present in 4th 5th and when going into overdrive. It is present both in and not in ECO mode. It is present in gear selection 4, 5 and drive. It is present to a lesser degree in tow mode as the rpm jump to over 2000 rpm makes it less present. Generally this happens between 1500 and 2000 rpm in the gears mentioned above. Didn't happen for the first 5500 kms I put on it in its first week on a trip to Florida. Dealership has seen it 3 times. First time = Dont' know, Second time= exhaust issue , third time= replace exhaust pipe and performed the rear differential recall, Fouth call= engineers say this is normal and a know torque converter issue that is normal for this vehicle. The noise is low to moderate at highway speeds, but can be so loud at 60 kms/hr that even trying to drown it out with the radio at loud doesn't work. Anyone else experiencing this problem? Chrysler Customer tells me that they will do nothing.
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