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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Automatic Transmission - 4L60-E/4L65-E (Introduction, Service & Replacement)) >> Repair Instructions >> Control and Shift Solenoids Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Identifying Valve Body Electrical Connections
    GM181573Courtesy of GENERAL MOTORS CORP.
  1. Remove the transmission filter. Refer to Automatic Transmission Fluid/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: 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 (267A).
    7. Fig 4: 2-3 Shift Solenoid & Retainer
    GM405074Courtesy of GENERAL MOTORS CORP.
  7. Remove the 2-3 shift solenoid retainer (395) and the 2-3 shift solenoid (367A).
    8. Fig 5: 3-2 Control Solenoid & Retainer
    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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