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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 4L60-E/4L65-E (Service & Replacement) >> Repair Instructions >> Valve Body and Pressure Switch Replacement >> Removal Procedure

Removal Procedure

  1. Ensure that removal of the valve body is necessary before proceeding.

    Important:  The following components can be serviced without removing the valve body from the transmission:

    • The torque converter clutch solenoid (1)
    • The pressure control solenoid (2)
    • The internal wiring harness (3)
    • The 2-3 shift solenoid (4)
    • The 1-2 shift solenoid (5)
    • The transmission fluid pressure manual valve position switch (6)
    • The 3-2 shift solenoid (7)
    • The torque converter clutch pulse width modulation (TCC PWM) solenoid (8)
    Fig 1: Identifying Components Which Are Serviced Without Removing Valve Body
    G01565870Courtesy of GENERAL MOTORS CORP.
  2. Remove the fluid level indicator.
  3. Raise the vehicle. Refer to FASTENER NOTICE in General Information.
  4. Remove the oil pan, gasket, and filter. Refer to AUTOMATIC TRANSMISSION FLUID/FILTER REPLACEMENT .
  5. Disconnect the internal wiring harness electrical connectors from the following components:
    • The transmission fluid pressure manual valve position switch (1)
    • The 1-2 shift solenoid (2)
    • The 2-3 shift solenoid (3)
    • The pressure control solenoid (4)
    • The TCC PWM solenoid (5)
    • The 3-2 shift solenoid (6)
      Fig 2: Disconnecting Internal Wiring Harness Electrical Connectors From Located Components
      G01565871Courtesy of GENERAL MOTORS CORP.
  6. Remove the fluid indicator stop bracket bolt (2).
  7. Remove the fluid indicator bracket (1).
    Fig 3: Fluid Indicator Bracket
    G01565872Courtesy of GENERAL MOTORS CORP.
  8. Remove the TCC 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.
  9. Remove the TCC PWM solenoid (1) in order to access the TCC solenoid retaining bolts.
    Fig 4: Torque Converter Clutch Pulse Width Modulation Solenoid
    G01565873Courtesy of GENERAL MOTORS CORP.
  10. Remove the TCC solenoid retaining bolts.
    Fig 5: Torque Converter Clutch Solenoid Retaining Bolts
    G01565874Courtesy of GENERAL MOTORS CORP.
  11. Remove the TCC solenoid (with O-ring seal) and wiring harness from the control valve body.
  12. Reposition the harness to the side of the transmission case.
    Fig 6: Removing TCC Solenoid & Wiring Harness From Control Valve Body
    G01565875Courtesy of GENERAL MOTORS CORP.
  13. Remove the control valve body bolts which retain the transmission fluid pressure switch to the control valve body.
    Fig 7: Transmission Fluid Pressure Switch
    G01565876Courtesy of GENERAL MOTORS CORP.
  14. Remove the transmission fluid pressure switch.
  15. Inspect the transmission fluid pressure switch for damage or debris.
    Fig 8: Identifying Transmission Fluid Pressure Switch
    G01565877Courtesy of GENERAL MOTORS CORP.
  16. Remove the manual detent spring retaining bolt.
  17. Remove the manual detent spring.
    Fig 9: Manual Detent Spring
    G01565878Courtesy of GENERAL MOTORS CORP.
  18. Inspect the manual detent spring for cracks or damage.

    Important:  Keep the control valve body level when lowering it from the vehicle. This will prevent the loss of checkballs located in the control valve body passages.

  19. Remove the remaining control valve body bolts.
  20. Carefully begin to lower the control valve body down from the transmission case while simultaneously disconnecting the manual valve link.
    Fig 10: Lowering Control Valve Body Down From Transmission Case
    G01565879Courtesy of GENERAL MOTORS CORP.
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