CERTAIN 2004 AND 2005 C15 DIESEL ENGINES MANUFACTURED BY CATERPILLAR BETWEEN OCTOBER 2003 AND APRIL 2005. THE VARIABLE VALVE ACTUATION OIL LINE (VVA LINE) USED ON 6 CYLINDER, 15L TURBOCHARGED AND AIR-TO-AIR AFTERCOOLED DIESEL ENGINES OF 435-550 HORSEPOWER MAY WEAR AGAINST THE SHARP EDGE OF THE CYLINDER HEAD IF NOT ORIENTED CORRECTLY.
RiskOIL LINE WEAR MAY CAUSE AN OIL LEAK AND A POTENTIAL FIRE HAZARD.
FixOWNERS OR DEALERS WILL INSPECT THE VVA LINE FOR WEAR. IF VVA LINE WEAR IS NOTED, DEALERS WILL REPLACE THE LINE. A CLIP WILL BE ADDED TO PREVENT FUTURE LINE WEAR. THE RECALL BEGAN ON APRIL 17, 2006.