Star Case: #S1121000005
Release Date: 6/30/11
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.
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
2010 5.7L DS/DD/DJ/DX/WK/WH/XK/XH
2011 5.7L DS/DD/DJ/D2 Only)
AR (1) RL0512241AB Kit, Torque Converter
2008 4.7L 2WD ND/HB/HG/DR/WK/WH/XK/XH
2008 4.7L 4WD
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)
Replace the torque converter.
Follow the procedures identified in the service manual.