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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 19 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Introduction (2 Of 2)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Control and Shift Solenoids Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Valve Body Electrical Connections
    GM181573Courtesy of GENERAL MOTORS CORP.
  1. Remove the transmission oil pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement .
    2. IMPORTANT: Do not remove the valve body for the following procedures. Removal of the 1-2 accumulator is necessary only if servicing the pressure control solenoid.
  2. Remove the 1-2 accumulator if necessary. Refer to Accumulator Assembly, Spacer Plate, and Gaskets .
  3. Disconnect the internal wiring harness electrical connectors from the following components:
    • Transmission fluid pressure switch (1)
    • 1-2 shift control solenoid (2)
    • 2-3 shift control solenoid (3)
    • Pressure control solenoid (4)
    • TCC PWM solenoid (5)
    • 3-2 control solenoid (6)
    4. Fig 2: Locating Pressure Control Solenoid & Retainer
    GM298162Courtesy of GENERAL MOTORS CORP.
  4. Remove the pressure control solenoid retainer.
  5. Remove the pressure control solenoid.
    6. Fig 3: View Of 1-2 & 2-3 Shift Solenoids & Retainers
    GM298169Courtesy of GENERAL MOTORS CORP.
  6. Remove the 1-2 and 2-3 shift solenoid retainers.
  7. Remove the 1-2 and 2-3 shift solenoids.
    8. Fig 4: View Of 3-2 Control Solenoid & Retainer
    GM298167Courtesy of GENERAL MOTORS CORP.
  8. Remove the 3-2 control solenoid retainer.
  9. Remove the 3-2 control solenoid.
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