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.
- 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.
- 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.
- Remove the 2-4 servo assembly from the transmission.
- 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.