GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 GMC MD Steel Tilt (W Model) 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L80-E 🢒 3rd and 4th Clutch Accumulator Housing Disassemble

    Object Number: 40609 Size: SH

    Note: Apply low pressure compressed air to the hole at the top of the accumulator housing to assist with the piston removal.

  1. Remove the 3rd clutch accumulator piston (405) from the 3rd and 4th clutch accumulator housing (51).
  2. Remove the 3rd clutch accumulator piston seals (404, 406).
  3. Inspect the 3rd clutch accumulator piston and seals for porosity, scoring, nicks, scratches and damage.

    4. Object Number: 40610 Size: SH
  4. Remove the 4th clutch accumulator piston pin retainer ring (402).
  5. Remove the 4th clutch accumulator piston (407) and pin (408).
  6. Remove the 4th clutch accumulator piston pin (408) from the 4th clutch accumulator piston (407).
  7. Remove the 4th clutch accumulator piston seal (404).
  8. Inspect the 4th clutch accumulator piston, pin and seal for porosity, scoring, nicks, scratches and damage.

    Object Number: 40609 Size: SH

    Important: Apply low pressure compressed air to the hole at the top of the accumulator housing to assist with the piston removal.

  1. Remove the 3rd clutch accumulator piston (405) from the 3rd and 4th clutch accumulator housing (51).
  2. Remove the 3rd clutch accumulator piston seals (404, 406).
  3. Inspect the 3rd clutch accumulator piston and seals for porosity, scoring, nicks, scratches and damage.

    4. Object Number: 40610 Size: SH
  4. Remove the 4th clutch accumulator piston pin retainer ring (402).
  5. Remove the 4th clutch accumulator piston (407) and pin (408).
  6. Remove the 4th clutch accumulator piston pin (408) from the 4th clutch accumulator piston (407).
  7. Remove the 4th clutch accumulator piston seal (404).
  8. Inspect the 4th clutch accumulator piston, pin and seal for porosity, scoring, nicks, scratches and damage.