GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1996 🢒 Chevy MD Steel Tilt (W Model) 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L80-E 🢒 Forward Servo Replacement

Removal Procedure

    Object Number: 102586 Size: MH
  1. Remove the following parts:
    2. 1.1. The front servo piston assembly
    1.2. The through
    1.3. The retainer
    1.4. The spring
  2. Remove six rear servo bolts using a 10 mm socket.
  3. Remove the servo cover and the gasket.

Inspection Procedure
  1. Inspect the front servo piston for porosity or damage.
  2. Inspect the seal and seal ring groove for damage.
  3. Inspect the piston pin for wear.
  4. Inspect the spring for distortion.
  5. Inspect the servo bore for wear or scoring.
  6. Clean the all the components.

Installation Procedure

    Object Number: 102586 Size: MH
  1. Install a new seal onto the piston.
  2. Install the front servo piston spring and the retainer.
  3. Install the following parts:
    4. 3.1. The ring
    3.2. The piston pin
    3.3. The piston (Ensure the tapered end of the piston pin contacts the band.)
  4. Install the front servo assembly into the case.