GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2001 🢒 Park Avenue 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T65-E 🢒 Accumulator Components Disassemble

    Object Number: 49483 Size: SH
  1. Remove the seven remaining accumulator cover bolts (131) from the accumulator assembly.
  2. Remove the accumulator cover (132) and the spacer plate assembly (134) from the accumulator housing assembly (140).
  3. Remove the 1-2 and 2-3 accumulator pistons (136A/B), piston pins (135A/B), outer springs (138, 142 - springs are model dependent) and cushion springs (139, 143 - springs are model dependent) from the accumulator housing (140).
  4. Remove the piston oil seal rings (137A/B) from the 1-2 and 2-3 accumulator pistons (136A/B).

    5. Object Number: 49487 Size: SH
  5. Disassemble the forward band servo and 2-1 manual band servo oil pipes (124, 125), and the lube oil pipe assembly (126-130) from the accumulator cover (132) and the 2-1 manual band servo cover (104).
  6. Disassemble the lube oil pipe (126), the hose clamps (127), the hose (128), the lube oil pipe retainer (129) and the lube oil pipe and washer assembly (130).