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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 134 (Automatic Transmission - 6L50/6L80/6L90 - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - On Vehicle >> Control Solenoid Valve and Transmission Control Module Assembly Replacement

Control Solenoid Valve and Transmission Control Module Assembly Replacement

WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Cadillac Escalade EXT, 2007 Cadillac Escalade ESV, and 2007 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Control Solenoid Valve & Transmission Control Module Assembly
GM1657183Courtesy of GENERAL MOTORS CORP.
Control Solenoid Valve and Transmission Control Module Assembly Replacement

Callout Component Name

Preliminary Procedures

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the transmission fluid pan and filter. Refer to Automatic Transmission Fluid, Fluid Pan and/or Filter 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)
Tip:  Tighten in specified sequence.
NOTE: Refer to Fastener Notice .

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
Tip: 
  • Inspect the 4 filter plate retaining tabs. A broken tab may not adequately secure the filter plate to the control solenoid valve assembly.
  • Align the control solenoid valve assembly with the lower valve body locator pin when assembling.

Refer to Control Module References for programming and setup information.
6 Filter Plate
Tip:  Discard filter plate and replace with new.