Accumulator Components Assemble

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Accumulator Housing, Cover Spacer Plate Assembly & Cover

Courtesy of GENERAL MOTORS CORP.

Inspect the accumulator housing (140), the accumulator cover spacer plate assembly (134) and the accumulator cover (132) for the following conditions:
- Damaged lube and servo oil pipe holes in the accumulator cover (132)
- Damaged, improperly machined or porous accumulator cover (132)
- Bent or damaged accumulator cover spacer plate assembly (134)
- Stripped or damaged bolt holes in the accumulator housing (140)
- Damaged, worn, improperly machined or porous accumulator housing (140)
- Leaking, loose or missing cup plugs in the accumulator housing (140)

Fig 2: View Of Accumulator Pistons, Springs, Seals & Pins Inspection Areas

Courtesy of GENERAL MOTORS CORP.

Inspect the accumulator pistons, springs, seals and pins for the following conditions:
- Broken or collapsed piston outer springs (138, 142)
- Broken or collapsed piston cushion springs (139, 143)
- Bent or worn accumulator piston pins (135A/B)
- Damaged, worn or porous accumulator pistons (136A/B)
- Damaged accumulator piston seals (137A/B)

Fig 3: View Of Servo & Lube Oil Pipe Components

Courtesy of GENERAL MOTORS CORP.

Inspect the servo and lube oil pipe components (124-130) and the 2-1 manual band servo cover (104) for the following conditions:
- Damaged lube, and servo oil pipe holes in the servo cover (104)
- Damaged, improperly machined or porous servo cover (104)
- Bent, plugged or damaged lube and servo oil pipes (124, 125, 130)
- Damaged lube oil pipe retainer (129) part of lube and servo oil pipe (130)
- Missing lube oil pipe washer (130)

Fig 4: Locating 2-3 Accumulator Piston Components

Courtesy of GENERAL MOTORS CORP.

Install the 2-3 accumulator piston oil seal ring (137B) onto the 2-3 accumulator piston (136B). Lubricate the oil seal ring with automatic transmission fluid.
Assemble the 2-3 accumulator piston pin (135B) and piston (136B).

IMPORTANT: Do not mix up spring or pistons/springs. Be sure to install the correct springs in the correct bore.

Install the 2-3 accumulator piston springs (138, 143) and piston assembly (136B) into the accumulator housing (140).

Fig 5: View Of 1-2 Accumulator Piston Components

Courtesy of GENERAL MOTORS CORP.

Install the 1-2 accumulator piston oil seal ring (137A) onto the 1-2 accumulator piston (136A). Lubricate the oil seal ring with automatic transmission fluid.
Assemble the 1-2 accumulator piston pin (135A) and piston (136A).

IMPORTANT: Do not mix up spring or pistons/springs. Be sure to install the correct springs in the correct bore.

Install the 1-2 accumulator piston springs (139, 142) and the piston assembly (136A) into the accumulator housing (140).

Fig 6: Identifying Accumulator Cover Bolts

Courtesy of GENERAL MOTORS CORP.

Assemble the accumulator cover spacer plate assembly (134) and the accumulator cover (132) onto the accumulator housing (140).

NOTE: Refer to FASTENER NOTICE .

Install seven accumulator cover bolts (131).
Tighten: Tighten the accumulator cover bolts to 12 N.m (106 lb in).

Fig 7: View Of Manual Band Servo & Forward Band Servo Oil Pipes

Courtesy of GENERAL MOTORS CORP.

Assemble pipe retainer (129) and pipe with washer (130).
Assemble the 2-1 manual band servo and forward band servo oil pipes (124, 125) into the accumulator assembly (132-140).
Assemble the 2-1 manual band servo and forward band servo oil pipes (124, 125) into the 2-1 manual band servo cover (104).
Install the lube oil pipe assembly (129-130) into the accumulator assembly (132-140).