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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 132 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - On Vehicle >> Control and Shift Solenoids Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. 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 filter. Refer to Automatic Transmission Fluid and Filter Replacement .
    2. IMPORTANT: 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)
    • torque converter clutch pulse width modulation (TCC PWM) solenoid (5)
    • 3-2 control solenoid (6)
    4. Fig 2: View Of Pressure Control Solenoid & Components
    GM1239566Courtesy of GENERAL MOTORS CORP.
  4. Remove the pressure control solenoid retainer bolt (364A) and retainer (378).
  5. Remove the pressure control solenoid (377).
    6. Fig 3: View Of 1-2 Shift Solenoid & Retainer
    GM405071Courtesy of GENERAL MOTORS CORP.
  6. Remove the 1-2 shift solenoid retainer (395) and the 1-2 shift solenoid (367A).
    7. Fig 4: View Of 2-3 Shift Solenoid & 2-3 Shift Valve
    GM405074Courtesy of GENERAL MOTORS CORP.
  7. Remove the 2-3 shift solenoid retainer (395) and the 2-3 shift solenoid (367A).
    8. Fig 5: View Of 3-2 Control Solenoid & 3-2 Control Valve
    GM405083Courtesy of GENERAL MOTORS CORP.
  8. Remove the 3-2 control solenoid retainer (395) and the 3-2 control solenoid (394).
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