GM Service Manual Online
For 1990-2009 cars only

Object Number: 1658187  Size: MF

Callout

Component Name

Notice: Refer to Fastener Notice in the Preface section.

Important: Do not remove all the bolts in the control valve body assembly. Remove only the bolts indicated.

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications .

Preliminary Procedures

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the transmission fluid pan, gasket and filter. Refer to Automatic Transmission Fluid, Fluid Pan and/or Filter Replacement .
  3. Remove the electrical connector sleeve. Refer to Automatic Transmission Electrical Connector Passage Sleeve Replacement .

1

Manual Shaft Detent Assembly Bolt (Qty: 1)

Tighten
12 N·m (106 lb in)

2

Manual Shaft Detent Assembly

Important: Ensure the manual shaft detent assembly roller is centered over the manual shaft detent lever assembly. Failure to center the roller may cause hard or no shift lever operation.

3

Control Valve Assembly Bolt (Qty: 6)

Tip
Tighten the bolts in the proper order.

Tighten
8 N·m (71 lb in)

4

Control Valve Assembly

Tip

    • For control valve body disassembly.
    • For control valve body cleaning and inspection.
    • For ball check valve locations.
    • For control valve body assembly.
    • Align the manual shift shaft position switch activator slide with the detent lever guide pin during control valve body installation.

5

Fluid Pump Seal Assembly

Important: Do not reuse the seal assembly.

6

Fluid Pump Seal Assembly

Important: Do not reuse the seal assembly.

7

Center Support Fluid Passage Seal Assembly

Important: 

   • Do not reuse the seal assembly.
   • After an internal transmission repair or internal part replacement, the Service Fast Learn Adapt procedure should be performed. Refer to Service Fast Learn Adapts .