GM Service Manual Online
For 1990-2009 cars only

Reverse Servo Replacement for Buick Park Avenue 1999

Removal Procedure

  1. Remove the right hand exhaust manifold. Refer to Exhaust Manifold Replacement in Engine Mechanical

  2. Object Number: 97337  Size: SH
  3. Depress the servo cover.
  4. Remove the snap ring and the servo cover.

  5. Object Number: 97341  Size: SH
  6. Remove the following items:
  7. • Piston assembly
    • Sealing ring
    • Servo ring
  8. For the disassembly of the servo piston assembly,

Installation Procedure


    Object Number: 97341  Size: SH
  1. Install the following items:
  2. • Servo spring
    • Sealing ring
    • Piston assembly

    Object Number: 97337  Size: SH
  3. Install the servo cover and the snap ring.
  4. Install the right hand exhaust manifold. Refer to Exhaust Manifold Replacement in Engine Mechanical.