GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1348728  Size: SH
  1. Ensure that the check valve moves freely by shaking the reverse clutch piston (1).
  2. Ensure that air does not escape when blown into the functioning side of the reverse clutch piston, when blown into the release side.

  3. Object Number: 1348726  Size: SH
  4. Check the plates for burns, damage, or distortion.
  5. Check the seal ring and O-ring for breakage or damage.
  6. Check the other components for damage or distortion.