2011 KENWORTH T700

EQUIPMENT

Paccar Incorporated (Paccar) is recalling certain model year 2012-2013 Peterbilt 579 and 587 trucks manufactured February 14, 2011, to December 5, 2012 and 2011 Kenworth T700 trucks manufactured September 21, 2010, to October 1, 2010. The affected trucks are equipped with Fontaine Ultra LT Fifth Wheel connectors, which, due to cumulative damage to the fifth wheel and its locking mechanism, have a locking mechanism that may fail to operate or to properly engage.

Risk: If the fifth wheel and locking mechanism are sufficiently damaged, the locking mechanism may fail to operate as intended and the trailer may unexpectedly detach from the tractor, increasing the risk of a crash.

TRAILER HITCHES:FIFTH WHEEL ASSEMBLY

PACCAR IS RECALLING CERTAIN MODEL YEAR 2011 KENWORTH T700 VEHICLES EQUIPPED WITH FONTAINE ULTRA LT MODEL FIFTH WHEEL MANUFACTURED FROM OCTOBER 5, 2010, THROUGH OCTOBER 13, 2010. DURING THE TRAILER COUPLING PROCESS, IT IS POSSIBLE FOR A DRIVER TO PARTIALLY CLOSE THE FONTAINE ULTRA LT MODEL FIFTH WHEEL AROUND THE TRAILER KINGPIN WITHOUT THE FIFTH WHEEL BEING FULLY ENGAGED AND LOCKED.

Risk: A PARTIALLY COUPLED FIFTH WHEEL MAY RESULT IN A TRAILER UNEXPECTEDLY SEPARATING FROM THE TRACTOR, INCREASING THE RISK OF A CRASH.

ELECTRICAL SYSTEM:SOFTWARE

PACCAR IS RECALLING CERTAIN MODEL YEAR 2011-2012 KENWORTH T660, T700, AND T800 VEHICLES MANUFACTURED FROM APRIL 19, 2010, THROUGH MAY 13, 2011, AND MODEL YEAR 2008, 2010, AND 2011 PETERBILT 365, 367, 384, 386, 387, 388 AND 587 VEHICLES MANUFACTURED FROM APRIL 20, 2010, THROUGH JUNE 11, 2011, AND EQUIPPED WITH PACCAR MX ENGINES AND EATON ULTRASHIFT DM OR ALLISON AUTOMATIC TRANSMISSIONS (WITHOUT AUTO-NEUTRAL). THE FAST IDLE CONTROL MAY BE ACTIVATED BY THE OPERATOR WHILE THE TRANSMISSION IS IN GEAR.

Risk: IF THE FAST IDLE CONTROL FUNCTION IS ENGAGED WITH THE TRANSMISSION IN GEAR, THE VEHICLE COULD UNEXPECTEDLY ACCELERATE AND OVERRIDE THE PARKING BRAKE AND , CREATING A RISK OF A CRASH AND DAMAGE TO OTHER VEHICLES OR PROPERTY AND THE POTENTIAL FOR INJURY TO NEARBY PEDESTRIANS.

FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY

PACCAR IS RECALLING CERTAIN MODEL YEAR 2008-2012 KENWORTH T2000, T660, T700, T800, AND W900, AS WELL AS MODEL YEAR 2009-2012 PETERBILT 365, 367, 384, 386, 387, 388, 389, AND 587 TRUCKS EQUIPPED WITH PACCAR MX ENGINES. THE OIL MODULE CENTRIFUGAL SPINNER FILTER CAP IN THE PACCAR MX ENGINE MAY BECOME LOOSE, POSSIBLY ALLOWING THE CAP TO COME OFF AND ENGINE OIL TO PARTIALLY DISCHARGE FROM THE OIL MODULE ONTO EXHAUST COMPONENTS.

Risk: THE DISCHARGE OF ENGINE OIL ONTO EXHAUST COMPONENTS WHICH ARE HOT, SUCH AS WHEN THE ENGINE IS UNDER SIGNIFICANT LOAD, MAY CAUSE A FIRE.

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

PACCAR IS RECALLING CERTAIN MODEL YEAR KENWORTH AND PETERBILT VEHICLES. A MANUFACTURING DEFECT IN THE SEAL SUPPLIED BY A COMPONENT MANUFACTURER INSTALLED ON THE OUTPUT SHAFT OF THE EXHAUST GAS RECIRCULATION (EGR) VALVE ACTUATOR MAY CAUSE EVENTUAL DELAMINATION OF THE SEAL. DELAMINATION OF THE SEAL MAY ALLOW ENGINE OIL TO LEAK FROM THE EGR VALVE ONTO EXHAUST COMPONENTS.

Risk: THE LEAKING OF ENGINE OIL ONTO HOT EXHAUST COMPONENTS, SUCH AS WHEN THE ENGINE IS UNDER SIGNIFICANT LOAD, MAY CREATE THE POSSIBILITY OF A FIRE.

SERVICE BRAKES, AIR:DISC:CALIPER

PACCAR IS RECALLING CERTAIN MODEL YEAR KENWORTH T660, T700, T800 AND W900 VEHICLES MANUFACTURED FROM DECEMBER 22, 2008, THROUGH AUGUST 2, 2010, AND EQUIPPED WITH AG400L AIR DISC BRAKES. THE AIR DISC BRAKE CALIPER COULD BE INSTALLED ON THE WRONG SIDE OF THE DRIVE AXLE POTENTIALLY CAUSING INTERFERENCE WITH THE SUSPENSION BRACKET AND THE REAR SUSPENSION AS THE OUTERMOST BRAKE PADS WEAR AND THE FLOATING CALIPER MOVES INBOARD.

Risk: AS THIS INTERFERENCE GETS LARGER, THIS COULD EVENTUALLY LEAD TO REDUCED BRAKING PERFORMANCE, INCREASING THE RISK OF A CRASH.