Control Valve Lower Body and Upper Body Replacement

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Control Valve Lower & Upper Body

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedures: Remove the transmission electrical connector. Refer to Automatic Transmission Electrical Connector Passage Sleeve Replacement .
1	Manual Shaft Detent Bolt CAUTION: Refer to Fastener Caution . Tighten: 12 N.m (106 lb in)
2	Manual Shaft Detent Assembly
3	Control Valve Assembly Bolt (Qty: 6) Procedure Do not remove all the bolts in the control valve body assembly. Remove only the bolts indicated. Tighten in specified sequence. Tighten: 8 N.m (71 lb in)
4	Control Valve Assembly
5	Fluid Pump Seal Procedure: Discard seal and replace with new.
6	Fluid Pump Seal Procedure: Discard seal and replace with new.
7	Center Support Fluid Passage Seal Procedure Discard seal and replace with new. It is recommended that transmission adaptive pressure (TAP) information be reset. Transmission performance may be affected as new TAP values are learned. Refer to Service Fast Learn Adapts . If replacing the control valve body assembly, remove the Control Solenoid Valve and Transmission Control Module Assembly Replacement and the Manual Shift Shaft Position Switch Replacement .