LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2021 >> Trailblazer RS, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Automatic Transmission - VT40 (MRG) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Control Valve Body Cover Replacement (L3T) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection
  2. Drain the transmission fluid. Transmission Fluid Drain and Fill (L3T) 
  3. GM5209007Courtesy of GENERAL MOTORS COMPANY

    Air Cleaner Assembly (1) - Remove - Air Cleaner Assembly Replacement

  4. GM5280299Courtesy of GENERAL MOTORS COMPANY

    Charge Air Cooler Inlet Air Hose (1) - Remove - Charge Air Cooler Inlet Air Hose Replacement

  5. GM5237792Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Inlet and Outlet Pipe - Remove - Transmission Fluid Cooler Inlet and Outlet Pipe Replacement

  6. GM5241738Courtesy of GENERAL MOTORS COMPANY

    Disconnect the control valve body transmission control module electrical connector (1), then unclip the 5 wiring harness retainers (2).

  7. position the battery positive cable out of the way.
  8. Automatic Transmission Fluid Cooling Heat Exchanger Inlet and Outlet Hose - Remove - Automatic Transmission Fluid Cooling Heat Exchanger Inlet and Outlet Hose Replacement (MRG)
  9. GM5241739Courtesy of GENERAL MOTORS COMPANY

    Transmission Wiring Harness Bracket Nut (1) - Remove [3x]

  10. Transmission Wiring Harness Bracket (2, 3, 4) - Remove [3x]
  11. Fig 1: Identifying Control Valve Body Cover Bolts/Studs With Loosening Sequence
    GM4961814Courtesy of GENERAL MOTORS COMPANY

    Control Valve Body Cover Stud (1) - Remove [8x]

  12. Control Valve Body Cover Bolt (2) - Remove [4x]
  13. GM4961815Courtesy of GENERAL MOTORS COMPANY

    Control Valve Body Cover (1) - Remove

  14. NOTE:

    The control valve body cover seal is reusable. Inspect the seal to determine if it may be reused.

  15. Control Valve Body Cover Seal (2) - Remove
  16. Control Valve Body Cover Wiring Connector Hole Seal (3) - Remove and DISCARD