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lewisb13 12-02-2011 09:31 AM

Torque Converter Bulletin
Star Case: #S1121000005

Release Date: 6/30/11

Symptom/Vehicle Issue:
Customer indicates that the vehicle has a slight moan, drone, or rattle noise and sounds as though it is coming from the exhaust, The customer may indicate that the noise occurs under light load (1400 - 1700 engine rpm - around 40 to 60 mph)

Confirm that the noise only occurs while the torque converter is in lock-up at low speeds (around 1400 - 1700 engine RPM) at approximately 45 mph. If the noise is heard while transmission is in partial lock-up at 1400 - 1700 RPM, put the vehicle into ERS - Tow/Haul mode (deactivates MDS and torque converter in full lock-up) If the noise is unchanged, perform the following repair procedure. If the noise goes away in ERS mode, further diagnosis is required. If the noise occurs above 1700 RPM or below 1400 RPM, further diagnosis is required.

Parts Required:
AR (1) RL051167AB Kit, Torque Converter
2009 - 2011 2WD DS R/T Only)

AR (1) RL051146AB Kit, Torque Converter
2009 4.7L WK/WH/W2/XK/XH,
2009 5.7L DS/DC/DH/D1/HB/HG/WK/WH/W2/XK
2011 5.7L DS/DD/DJ/D2 Only)

AR (1) RL0512241AB Kit, Torque Converter
2008 4.7L 4WD WK/WH/XK/XH
2008 5.7L 2WD/4WD DR/HB/HG/WK/WH/XK/XH
2009 4.7L 2WD ND/HB/HG/DS
2010 4.7L 2WD ND/DS/DX
2011 4.7L 2WD DS/DX/ND
2011 5.7L 2WD/4WD WD/WK/W2 Only)

Repair Procedure:
Replace the torque converter.
Follow the procedures identified in the service manual.

Razorbass 12-02-2011 11:47 AM

Probably not a bad idea given the number of people who have experienced this problem. Up to the mods to determine if a sticky is necessary. If so, below is a link to the star case picture originally posted by Rammin88.

Turbovsix 12-02-2011 11:54 AM

Also, you may want to add the content from this thread to that sticky as TransEngineer had some valuable information to add that clarifies specifically why this occurs, what the side effects are, etc....

Think adding a sticky on this is a good idea.

MADDOG 12-02-2011 02:25 PM

Moved to the TSB section.

Does the bulletin advise on what year trucks this applies to?

I do see they list years for which the T/C fits but normally they also list what year trucks the bulletin is for.

SupermanWV 07-23-2013 10:11 PM

Is it possible this is happening to my 2013? As I've had a sound that even the dealer transmission mechanic says sounds like an exhaust rattle. To me it sounds like two washers that are loose, rattling against each other.

Clark (SupermanWV)

12RamSport1500 07-24-2013 09:14 PM

I'm getting the same thing n my 2012

SupermanWV 07-24-2013 09:20 PM

Do you have any idea what your vibration is? Could it be the torque converter? I don't have any physical vibrating in the steering wheel or anything. I just have that weird vibrating noise. And otherwise the truck seems to run and drive and change gears fine.

Clark (SupermanWV)

12RamSport1500 07-25-2013 08:38 AM

I don't have a vibration, all I get is a ratcheting sound and the tech at the dealership here said that its probably a solenoid. I'm not to sure cause it seems to be getting worse.

SupermanWV 07-25-2013 02:19 PM

That seems like a dealership type answer. The only solenoid it could be would have to be located in the center of the vehicle. As I hear it plain as day when the window is down on either side of my truck.

Clark (SupermanWV)

huntergreen 07-27-2013 01:03 PM

guess that explains the "hum" in my truck on the hwy.

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