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2-4 Servo (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. Raise and support the vehicle. Remove the oil pan bolt located below and to the left of the 2-4 servo cover. Install the servo cover depressor to the oil pan rail. Tighten the bolt on the servo cover depressor to compress the servo cover. See Figure.
  2. Remove the servo cover retaining ring. See Figure. Loosen the bolt on the servo cover depressor to release tension on the servo cover. Remove the servo cover and O-ring seal. If the cover is hung up on the seal, use a pick (2) to pull and stretch the seal (1) out of the groove. Cut and remove the O-ring seal before removing the cover. See Figure.
  3. Remove the 2-4 servo assembly from the transmission.
  4. Inspect the 4th apply piston, the 2-4 servo converter, 2nd apply piston, and the piston inner housing for cracks, scoring, burrs and nicks. See Figure.
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