2-4 Servo: Removal
- Raise and suitably support the vehicle. Remove the propeller shaft. See appropriate DRIVESHAFT & UNIVERSAL JOINTS article in DRIVE AXLES. Remove the torque arm at the transmission. See appropriate REAR article in SUSPENSION. Install a transmission jack and remove the transmission support. Remove the catalytic converter heat shield. Lower the transmission.
- Remove the oil pan bolt below and to the left of the 2-4 servo cover. Install the (J-29714-A) to the oil pan rail. Tighten the bolt on the (J-29714-A) to compress the servo cover. See Fig 1
. Remove the servo cover retaining ring. See Fig 2
. Loosen the bolt on the (J-29714-A) 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 3
. Cut and remove the O-ring seal before removing the cover. Remove the 2-4 servo from the transmission. See Fig 4
. Inspect the 4th apply piston, 2-4 servo converter, 2nd apply piston, and the servo piston inner housing for the following defects:
- Cracks.
- Scoring.
- Burrs and nicks.
Courtesy of GENERAL MOTORS CORP.
Courtesy of GENERAL MOTORS CORP.
Courtesy of GENERAL MOTORS CORP.
Courtesy of GENERAL MOTORS CORP.