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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 6L50/6L80/6L90 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> On-Vehicle Repair Instructions >> Control Solenoid Valve and Transmission Control Module Assembly Replacement

Control Solenoid Valve and Transmission Control Module Assembly Replacement

Fig 1: Replacing Control Solenoid Valve and Transmission Control Module Assembly
GM1657183Courtesy of GENERAL MOTORS CORP.
Callout Component Name
Preliminary Procedures: 
Remove the control valve body assembly. Refer to Control Valve Lower Body and Upper Body Replacement .
1 Manual Shift Shaft Position Switch Assembly Electrical Connector
Tip:  Release the connector lock before disconnecting. Engage the connector lock after connecting.
2 Control Module Assembly Heat Sink Bolt (Qty: 2)
NOTE: Refer to Fastener Notice .

Tip:  Tighten in specified sequence.

Tighten:  8 N.m (71 lb in)

3 Control Solenoid Valve Assembly Bolt (Qty: 4)
Tip:  Tighten in specified sequence.

Tighten:  8 N.m (71 lb in)

4 Control Solenoid Valve Assembly Bolt (Qty: 5)
Tip:  Tighten in specified sequence.

Tighten:  8 N.m (71 lb in)

5 Control Solenoid Valve and Module Assembly

Procedure

  1. Inspect the 4 filter plate retaining tabs. A broken tab may not adequately secure the filter plate to the control solenoid valve assembly.
  2. Align the control solenoid valve assembly with the lower valve body locator pin when assembling.
  3. Reset the transmission adaptive pressure (TAP) values. Refer to Service Fast Learn Adapts .
6 Filter Plate
Tip:  Discard filter plate and replace with new.