Use your fingernail to check for a ridge at the upper limit of ring travel, approximately 1/4-inch down from the top of each cylinder. If ridges are present due to carbon deposits or cylinder wear, they must be completely removed with a ridge reamer before removing the pistons to avoid piston breakage. Once the ridges are cleared, turn the engine upside-down with the
Crankshaft facing up. For 3.6L V6 engines, remove the windage tray bolts in reverse order of installation. Before disconnecting the connecting rods, check the endplay using feeler gauges, ensuring the play is eliminated; if the endplay exceeds the service limit, new connecting rods may be necessary. Mark the connecting rods and caps with an indelible marker if they lack identification. Loosen the connecting rod cap nuts gradually until they can be removed by hand, then take off the number one connecting rod cap and bearing insert without dropping the insert. To protect the crankshaft journal and cylinder wall during piston removal, slip a short length of plastic or rubber hose over each connecting rod cap bolt. Remove the bearing insert and push the connecting rod/piston assembly out through the top of the engine, using a wooden hammer handle to apply pressure on the upper bearing surface. If resistance is encountered, ensure all ridge material has been removed. Repeat this process for the remaining cylinders. After removal, reassemble the connecting rod caps and bearing inserts in their respective rods, tightening the cap nuts securely, and keep the old bearing inserts in place until reassembly to prevent damage to the bearing surfaces. Avoid separating the pistons from the connecting rods.