GM Service Manual Online
For 1990-2009 cars only

Tools Required

EN-46745 Piston Pin Clip Remover/Installer

    Notice: Refer to General Repair Instructions in the Preface section.


    Object Number: 1959116  Size: SH
  1. Remove the piston rings (2) from the piston (3) using a piston ring expander (1). Place each ring in a clean shop towel for storage.

  2. Object Number: 1959119  Size: SH

    Important: 

       • The connecting rod is non-directional and may be assembled/reassembled to the piston in either direction.
       • DO NOT reuse the piston pin retainers.

  3. Using the EN-46745 , remove the piston pin retainers by using the removal access notch (1) in the side of the piston. Discard the piston pin retainers.

  4. Object Number: 1959120  Size: SH
  5. Slide the piston pin (1) out of the piston (2). The piston will disconnect from the connecting rod.