2-4 Servo: Removal
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.
NOTE:
Tools required: Servo Cover Depressor (J-29714-A).
- Raise and support the vehicle. Support the transmission with a suitable jack. Remove the transmission support. See appropriate REMOVAL & INSTALLATION article. Remove the front exhaust pipe assembly.
- Remove the heat shield. See Fig 1 . Carefully lower the transmission to gain access to the 2-4 servo. Remove 2 oil pan bolts to install the servo cover depressor to the oil pan rail. Tighten the bolt on the servo cover depressor to compress the servo cover. See Fig 2 .
- Remove the servo cover retaining ring. See Fig 3 . 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. See Fig 4 . Cut and remove the O-ring seal before removing the cover.
- Remove the 2-4 servo assembly from the transmission. Inspect the 4th apply piston, the 2-4 servo cover, 2nd apply piston, and the piston inner housing for cracks, scoring, burrs and nicks. See Fig 5 .