TSB - 4L60E , 4L65E No 2nd , No 4th , and No Reverse

[Klaus]

Document ID# 1306764
2003 HUMMER H2


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Service VME - 4L60E , 4L65E No 2nd , No 4th , and No Reverse - automatic fourth second shift transmission #PI00822A - (04/21/2003)
Service VME - 4L60E, 4L65E No 2nd, No 4th and No Reverse - automatic fourth PQC second shift transmission
.

CONDITION/CONCERN: The 4L60E/4L65E may exhibit a condition of no 2nd, no 4th and no reverse.

SERVICE VME
This message applies to 2003 and prior light duty cars and trucks equipped with 4L60E or 4L65E automatic transmission. Subject is Stripped Reaction Sun Shell repairs at less than 25,000 miles.

When repairing a transmission with a reaction sun shell that has stripped splines at 25,000 miles or less, be sure to also replace the reaction sun gear (item 672) and the reaction carrier shaft (item 666). Tooth finish of the sun gear and run-out of the reaction shaft are both factors that effect sun shell spline life. Plans are in place to produce sun shells with hardened splines for both production transmissions and service usage. A bulletin will be issued when sun shells with hardened splines are available.

Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance.



GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION


© Copyright General Motors Corporation. All Rights Reserved.


--------------------------------------------------------------------------------
Document ID# 1306764
2003 HUMMER H2

[Klaus]

Document ID# 1306764
2003 HUMMER H2


--------------------------------------------------------------------------------

Service VME - 4L60E , 4L65E No 2nd , No 4th , and No Reverse - automatic fourth second shift transmission #PI00822A - (04/21/2003)
Service VME - 4L60E, 4L65E No 2nd, No 4th and No Reverse - automatic fourth PQC second shift transmission
.

CONDITION/CONCERN: The 4L60E/4L65E may exhibit a condition of no 2nd, no 4th and no reverse.

SERVICE VME
This message applies to 2003 and prior light duty cars and trucks equipped with 4L60E or 4L65E automatic transmission. Subject is Stripped Reaction Sun Shell repairs at less than 25,000 miles.

When repairing a transmission with a reaction sun shell that has stripped splines at 25,000 miles or less, be sure to also replace the reaction sun gear (item 672) and the reaction carrier shaft (item 666). Tooth finish of the sun gear and run-out of the reaction shaft are both factors that effect sun shell spline life. Plans are in place to produce sun shells with hardened splines for both production transmissions and service usage. A bulletin will be issued when sun shells with hardened splines are available.

Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance.



GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION


© Copyright General Motors Corporation. All Rights Reserved.


--------------------------------------------------------------------------------
Document ID# 1306764
2003 HUMMER H2