Manual Shift Detent Lever with Shaft Position Switch Assembly Replacement

Fig 1: Identifying Manual Shift Detent Lever & Shaft Position Switch Assembly

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedures Remove the transmission range selector lever. Refer to Automatic Transmission Range Selector Lever Replacement . Remove the lower control valve body. Refer to Control Valve Lower Body and Upper Body Replacement .
1	Manual Shaft Detent Lever Pin CAUTION: Use J41229 to install the manual shaft pin at the correct height in order to properly secure the manual shaft. If you install the pin too deep, the case bore may crack. Procedure Use a small nail puller to remove the pin. Discard the pin. It is not reusable. Use J-41229 installer to install the pin. Inspect that the pin installed height is within 6.5-7.5mm (0.25-0.30in). Special Tools J-41229 Manual Shaft Pin Installer For equivalent regional tools, refer to Special Tools .
2	Manual Shaft Detent Lever Assembly (w/Shift Position Switch) Procedure Removal: Partly lower the manual shaft detent lever assembly (w/shift position switch) in order to rotate the detent lever and disconnect the park actuator rod. Then fully remove the manual shaft detent lever assembly from the transmission case. Installation: Partly install the manual shaft detent lever assembly (w/shift position switch). Rotate the detent lever and connect the park actuator rod. Then fully install the manual shaft detent lever assembly in the transmission case. Lubricate the manual shaft with automatic transmission fluid (ATF) to prevent damage to the manual shift shaft seal. NOTE: Do not pull the park actuator rod end out beyond the machined oil passage surface in the case. A no park condition will exist if the park pawl actuator assembly is pulled out of the transmission too far and the actuator rod disengages from the park pawl. The transmission assembly will require disassembly to re-install the actuator rod over the park pawl.

Callout

Component Name

Preliminary Procedures

Remove the transmission range selector lever. Refer to Automatic Transmission Range Selector Lever Replacement .
Remove the lower control valve body. Refer to Control Valve Lower Body and Upper Body Replacement .

Manual Shaft Detent Lever Pin

CAUTION:

Use J41229 to install the manual shaft pin at the correct height in order to properly secure the manual shaft. If you install the pin too deep, the case bore may crack.

Procedure

Use a small nail puller to remove the pin. Discard the pin. It is not reusable.
Use J-41229 installer to install the pin.
Inspect that the pin installed height is within 6.5-7.5mm (0.25-0.30in).

Special Tools
J-41229 Manual Shaft Pin Installer
For equivalent regional tools, refer to Special Tools .

Manual Shaft Detent Lever Assembly (w/Shift Position Switch)

Procedure

Removal: Partly lower the manual shaft detent lever assembly (w/shift position switch) in order to rotate the detent lever and disconnect the park actuator rod. Then fully remove the manual shaft detent lever assembly from the transmission case.
Installation: Partly install the manual shaft detent lever assembly (w/shift position switch). Rotate the detent lever and connect the park actuator rod. Then fully install the manual shaft detent lever assembly in the transmission case.
Lubricate the manual shaft with automatic transmission fluid (ATF) to prevent damage to the manual shift shaft seal.

NOTE:

Do not pull the park actuator rod end out beyond the machined oil passage surface in the case. A no park condition will exist if the park pawl actuator assembly is pulled out of the transmission too far and the actuator rod disengages from the park pawl. The transmission assembly will require disassembly to re-install the actuator rod over the park pawl.