Overhaul - Automatic Transmission: Accumulator: Description

The 42LE underdrive, overdrive, low/reverse, and 2/4 clutch hydraulic circuits each contain an accumulator. An accumulator assembly typically consists of a piston, seals, return spring(s), and a cover or plug. See Fig 1.

Fig 1: Exploded View Of Accumulator Assembly (Typical)

Courtesy of DAIMLERCHRYSLER CORP.

The overdrive and underdrive accumulators are located within the transaxle case, and are retained by the valve body. See Fig 2.

The low reverse accumulator is also located within the transaxle case, but the assembly is retained by a cover and a snap-ring. See Fig 2.

The 2/4 accumulator is located in the valve body. It is retained by a cover and retaining screws. See Fig 3.

Fig 2: Locating Overdrive, Underdrive & Low/Reverse Accumulator

Courtesy of DAIMLERCHRYSLER CORP.

Fig 3: Exploded View Of Accumulator Assembly

Courtesy of DAIMLERCHRYSLER CORP.