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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 Replacement >> Installation Procedure

Installation Procedure

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  1. GM4998437Courtesy of GENERAL MOTORS COMPANY

    Install the control valve body (1) to the transmission. Control Valve Body Assembly Installation

  2. Control Valve Body Cover - Install - Control Valve Body Cover Replacement (L3T) , or Control Valve Body Cover Replacement (LIH) 
  3. Perform the solenoid valve characterization programming procedure. Q77 Transmission Control Solenoid Valve Characterization Programming (VT40)