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Control & Shift Solenoids: Installation

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the 3-2 control solenoid. Install the 3-2 control solenoid retainer. Install the 1-2 and 2-3 shift solenoids. See Fig 3 .
  2. Install the 1-2 and 2-3 shift solenoid retainers. Install the pressure control solenoid. Ensure the electrical tabs are facing outboard. See Fig 3 .
  3. Install the pressure control solenoid retainer and retaining bolt. Tighten the pressure control solenoid retaining bolt to specification. See TORQUE SPECIFICATIONS  .
  4. Connect the internal wiring harness electrical connectors to the following components:
    • Transmission fluid pressure switch (1). See Fig 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).
  5. Install the 1-2 accumulator. See ACCUMULATOR ASSEMBLY  .
  6. Install the transmission oil pan and filter. See DRAINING & REFILLING  under LUBRICATION.
  7. Fill transmission with appropriate fluid to proper level. See LUBRICATION  .
Fig 1: View Of Control & Shift Solenoid Locations
G99A03602Courtesy of GENERAL MOTORS CORP.
Fig 2: Disassembled View Of Pressure Control Solenoid
G00056998Courtesy of GENERAL MOTORS CORP.
Fig 3: Disassembled View Of Shift Solenoids
G00056999Courtesy of GENERAL MOTORS CORP.
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