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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1612 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Control Valve Body Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the fluid level indicator.
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Remove the oil pan, gasket, and filter. Refer to Automatic Transmission Fluid and Filter Replacement .
    4. Fig 1: Identifying Internal Wiring Harness Electrical Connectors
    GM2035534Courtesy of GENERAL MOTORS CORP.
  4. Disconnect all the internal wiring harness electrical connectors from the electrical connectors (1-6) components.
    5. Fig 2: View Of TCC PWM Solenoid & Retainer
    GM670428Courtesy of GENERAL MOTORS CORP.
  5. Remove the torque converter clutch (TCC) pulse width modulation (PWM) solenoid retainer (2) with a small screwdriver. Rotate the solenoid (1) in the bore, if necessary, until the flat part of the retainer (2) is visible.
  6. Remove the TCC PWM solenoid (1) in order to access the TCC solenoid retaining bolts.
    7. Fig 3: Identifying TCC Solenoid Retaining Bolts
    GM2035536Courtesy of GENERAL MOTORS CORP.
  7. Remove the TCC solenoid retaining bolts (68).
    8. Fig 4: Identifying TCC Solenoid (With O-Ring Seal) & Wiring Harness
    GM2035537Courtesy of GENERAL MOTORS CORP.
  8. Remove the TCC solenoid (with O-ring seal) and wiring harness (66) from the control valve body.
  9. Reposition the harness to the side of the transmission case.
    10. Fig 5: Identifying Detent Spring Bolt & Spring Assembly
    GM2035540Courtesy of GENERAL MOTORS CORP.
  10. Remove the manual detent spring bolt (64) and the spring assembly (63).
  11. Remove all valve body bolts.
    12. Fig 6: View Of Valve Body To Transmission Case
    GM678315Courtesy of GENERAL MOTORS CORP.
  12. Carefully begin to lower the control valve body down from the transmission case while simultaneously disconnecting the manual valve link.
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