General information about engines

This chapter describes repair procedures that can be performed without removing the 4.2L inline six-cylinder engine. The engine block, cast from aluminum alloy, has six cylinders arranged in a row. The aluminum cylinder head houses two camshafts that drive four-valve mechanisms on each cylinder. The valves are driven by roller rocker arms, which are in direct contact with the camshaft lobes. The gaps between the camshaft cams, rocker arms and valves are automatically maintained due to the presence of hydraulic compensators. The oil pump, driven directly from the crankshaft, is located in the front engine casing. The cylinder block pan is cast from aluminum alloy. The crankshaft is made of hardened steel. The pistons are completely unloaded; connecting rods are stamped from powder alloy.

To correctly identify the engine, you need to find the corresponding plate, which is located in the front left corner of the instrument panel. The VIN number is visible from the outside of the vehicle through the windshield. The eighth character in the engine designation displays its type:

S = 4.2L inline six-cylinder engine.