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Control & Shift Solenoids (4L60-E): Removal

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, and 2002 GMC C3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the transmission oil pan and filter. See DRAINING & REFILLING  under LUBRICATION.
  2. Remove the 1-2 accumulator if necessary. See ACCUMULATOR ASSEMBLY (4L60-E) .
  3. Disconnect the internal wiring harness electrical connectors from the following components:
    • Transmission fluid pressure switch. See Figure.
    • 1-2 shift control solenoid.
    • 2-3 shift control solenoid.
    • Pressure control solenoid.
    • 3-2 shift control solenoid.
    • TCC PWM solenoid.
  4. Remove the pressure control solenoid retainer. Remove the pressure control solenoid. See Figure.
  5. Remove the 1-2 and 2-3 shift control solenoid retainers. Remove the 1-2 and 2-3 shift control solenoids. See Figure.
  6. Remove the 3-2 control solenoid retainer. Remove the 3-2 control solenoid. See Figure.
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