Chevrolet Silverado / GMC Sierra. Service manual — part 801

Fig. 177: Manual Shaft Detent Assembly and Manual Shift Shaft Position Switch
Component View
Courtesy of GENERAL MOTORS CORP.

Manual Shaft Detent Assembly and Manual Shift Shaft Position Switch Removal

CONTROL SOLENOID VALVE ASSEMBLY REMOVAL

Callout

Component Name

1

Bolt M6 x 14.5

2

Manual Shaft Detent Assembly

3

Bolt M5 x 55

4

A/Trans Manual Shift Shaft Position Switch
Assembly Electrical Connector
Tip: Release the connector lock before
disconnecting.

5

A/Trans Manual Shift Shaft Position Switch
Assembly

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 178: Control Solenoid Valve Assembly Component View
Courtesy of GENERAL MOTORS CORP.

Control Solenoid Valve Assembly Removal

Callout

Component Name

1

Bolt M5 x 53 (Qty: 2)

2

Bolt M5 x 55 (Qty: 4)

3

Bolt M5 x 45 (Qty: 5)

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

UPPER AND LOWER VALVE BODIES DISASSEMBLE

4

Control Solenoid (w/Body and TCM) Valve
Assembly

NOTE:

Use care when handling the control valve body
assembly. If dropped, damage to the control solenoid
valve body assembly internal components, including
the transmission control module (TCM), may result.

5

Filter Plate Assembly

NOTE:

Use care when removing or installing the filter plate
assembly. A broken or missing retaining tab may not
adequately secure the filter plate to the control
solenoid valve assembly, resulting in possible
damage or contamination.

NOTE:

Discard the filter plate. Replace with a NEW filter
plate. Reusing an old filter plate may cause damage to
the control solenoid valve assembly.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 179: Upper and Lower Valve Bodies Component View
Courtesy of GENERAL MOTORS CORP.

Upper and Lower Valve Bodies Disassemble

Callout

Component Name

1

Bolt M5 x 36 (Qty: 12)

2

Bolt M5 x 45 (Qty: 5)

3

Bolt M5 x 55

4

Control Valve Lower Body Assembly
Tip:

Separate the upper and lower valve bodies by
carefully prying at the point indicated.

Refer to Control Valve Lower Body
Assembly Cleaning and Inspection.

5

Control Valve Body Spacer (w/Gasket) Plate
Assembly

NOTE:

Do not use the old spacer plate. Install a NEW spacer

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado