GM Service Manual Online
For 1990-2009 cars only

Important: For proper reassembly, mark the cylinder number on all of the pistons, connecting rods and connecting rod bearing caps.

Important: Decarbon the top of the cylinder bore before attempting to remove the piston from the cylinder.


    Object Number: 178319  Size: SH
  1. Remove the rod bearing cap nuts.
  2. Carefully remove the rod bearing cap.
  3. Important: Install a piece of hose (1) over the threads of the rod bolts. This is to prevent damage to the bearing journal, the cylinder walls or rod bolt threads when removing the connecting rod.

  4. Carefully remove the piston and the connecting rod assembly out through the top of the cylinder bore.