GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1996 🢒 Lumina 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T60-E 🢒 Forward Band Servo Assemble

    Object Number: 13045 Size: SH
  1. Inspect the forward band servo components for the following conditions:
    2. • A damaged, worn, or porous servo piston
    • A damaged servo piston seal
    • A damaged, worn, or porous servo cover
    • A damaged servo cover seal
    • A broken or collapsed servo piston spring
    • A broken or collapsed servo piston cushion spring
    • A damaged or worn servo piston pin

    Object Number: 13044 Size: SH
  2. Install the servo piston cushion spring retainer (17) into the servo piston, if necessary.
  3. Assemble the servo piston (16), the servo piston cushion spring (19), the cushion spring retainer (20), and the servo piston pin (21).
  4. Install the servo pin snap ring (15) into the servo piston pin (21).
  5. Install the servo piston oil seal ring (18) into the servo piston (16).
  6. Install the servo piston spring (22) into the servo assembly.

    7. Object Number: 10493 Size: SH
  7. Position the transmission so that the oil pan is facing up.
  8. Affix the servo cover seal (14) onto the servo cover (13).
  9. Install the servo assembly (13-22) into the servo cover. Pivot the servo into the cover in order to prevent the piston seal from being damaged.
  10. Install the servo and the cover assembly (13-22) into the case (3).

    11. Object Number: 10492 Size: SH
  11. Using a long screwdriver, pry against the work bench in order to compress the forward band servo assembly (13).
  12. Hold the servo assembly compressed.

    13. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  13. Install the three forward band servo cover bolts (12).

    14. Tighten
    Tighten the bolts to 12 N·m (106 lb in).

  14. Remove the long screwdriver.