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  #1  
Old 10-01-2012, 05:34 PM
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Default Vibration under light acceleration.

I have a 2011 Ram 1500 Crew Cab and had the Torque converter changed. What a Pandora's box this has lead to. The exchange took the dealer three oil changes to finally admit that there was something wrong, well after that there was a loud whistle whenever the truck was under light load or in park or neutral. Well that problem lead to another torque converter and a transmission fluid pump exchange that took a week and a half to complete. Now there is a new issue, if I am on the road cruising along and lighten up on the gas pedal to slow down then add just a bit to keep up with the traffic I get a rumble. Sort of thought that it was just me hitting the lane divider bumps but then noticed the situation that it was consistently happening in was always under light acceleration, regardless of speed. It usually lasts for a second or two then goes away. Initially I thought that maybe when they had the trans out for TQC that grease or lube got on the fly wheel and it would burn off after a bit, but this hasn't happened. Now I wondering if the tires might be the issue. I had them rotated after the last oil change/repair and that is also when the vibration started. They are the stockers and are probably due for exchange soon (about 30K miles on them). So question is, any thoughts? Over torqued wheels? Misaligned tranny? Bad tires? ANOTHER bad torque converter? Any help or suggestions appreciated!
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  #2  
Old 10-01-2012, 05:36 PM
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Oh, one other thing ... any thoughts on the Michelin LTX M/S 2 as a replacement?
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Old 10-02-2012, 12:36 AM
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Mine is making a zing type rattle on light throttle while cruising, but not any other time. Does yours vibrate like this or when you let off throttle?
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Old 10-02-2012, 11:48 AM
dpeterso dpeterso is offline
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This sounds like MDS. When MDS is engaged under light load from around 35 mph to 60, I get the same thing. I think this is the way these trucks are with MDS. It sounds terrible and you get vibrations. I found if I manual shift down to 5 around town it disables MDS and that annoying vibration and sound goes away.
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Old 10-02-2012, 11:56 AM
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Tires and/or wheels would be a consistent problem and it's really not possible to misalign the trans. I'd have them look into a potential driveshaft or rear end problem.
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Old 10-02-2012, 04:47 PM
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Quote:
Originally Posted by dpeterso View Post
This sounds like MDS. When MDS is engaged under light load from around 35 mph to 60, I get the same thing. I think this is the way these trucks are with MDS. It sounds terrible and you get vibrations. I found if I manual shift down to 5 around town it disables MDS and that annoying vibration and sound goes away.
Yea, I'm not that lucky, still does it in tow mode (MDS off) problem I am affairs going to be the converter.
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Old 10-03-2012, 08:36 AM
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Mine does it in all modes, tow, MDS on/off, with a trailer without a trailer.(though a little less with the trailer. I tend not to think that it has anything to do with the MDS as it never did it before this last service. Service included the torque converter, transmission pump, oil change, and tire rotation. This is getting a little irritating as it is just a nuisance issue, I hope!
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Old 10-03-2012, 09:01 AM
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HenryG; you pretty much hit it on the nose bud. That is what a service writer is supposed to ask customers while typing up their work order. "So when did the problem with your vehicle start?" And then you reply with "It started shortly after you replaced my torque converter". Sorry to hear of all your troubles man. Your technician is going to have to inspect everything he or she touched to find the occuring problem. Keep us updated on what you find man.
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Old 10-05-2012, 12:30 PM
BBRam BBRam is offline
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Is it like this? Torque Converter problems
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  #10  
Old 10-06-2012, 03:15 PM
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@BBRam ... thanks that is the exact situation! Looks like we're going for TC # 3 or is that #4??
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