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Home >> Chevrolet >> 2009 >> HHR SS, Automatic >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4T45-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Repair Instructions - On Vehicle >> Control Valve Body Replacement >> Removal Procedure

Removal Procedure

    Fig 1: Identifying Oil Pump Assembly & Oil Pump Shaft
    GM893972Courtesy of GENERAL MOTORS CORP.
  1. Remove the transaxle case side cover. Refer to Control Valve Body Cover Replacement .
  2. Remove the oil pump bolts and the oil pump assembly.
  3. Remove the oil pump shaft.
    4. Fig 2: Disconnecting Wire Harness Connectors
    GM893962Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the wire harness connectors from the following components:
    • Pressure control solenoid
    • 1-2, 2-3 shift solenoids
    • TFP switch assembly
    • TCC solenoid
    5. Fig 3: View Of Transmission Fluid Pressure Manual Valve Position Switch & O-Rings
    GM893953Courtesy of GENERAL MOTORS CORP.
  5. Remove the TFP switch assembly bolts and remove the switch assembly from the control valve body. The 7 TFP switch O-rings are reusable if not damaged and should remain with the pressure switch assembly.
    6. Fig 4: View Of Control Valve Body Assembly
    GM1776844Courtesy of GENERAL MOTORS CORP.
  6. Remove the remaining control valve body bolts (9, 12, 16) and remove the control valve body assembly (18).
    7. Fig 5: View Of Spacer Plate Support & Spacer Plate
    GM1844265Courtesy of GENERAL MOTORS CORP.
  7. Remove the spacer plate support bolts (20) and remove the spacer plate support (21).
    8. IMPORTANT: Checkballs may fall out of the channel plate assembly. Retain the checkballs with petroleum jelly.
  8. Remove the spacer plate (90) with the spacer plate filter attached.
  9. Remove and discard the spacer plate assembly (90).
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