2011 WESTERN STAR 4900

EQUIPMENT

Daimler Trucks North America LLC (DTNA) is recalling certain 2002-2017 Freightliner Cascadia, Century Class, Columbia and Coronado trucks and Western Star 4700, 4900, 5700, 5900 and 6900 trucks. These vehicles are equipped with Kidde Plastic-Handle or Push Button 'Pindicator' Fire Extinguishers that may become clogged, preventing the extinguisher from discharging as expected or excessive force may be needed to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17E062-5427.pdf

Risk: In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.

EXTERIOR LIGHTING:BRAKE LIGHTS

Daimler Trucks North America, LLC (DTNA) is recalling certain 2008-2018 Freightliner Cascadia, Western Star 4700, 4900, 5700, and 6900 trucks. After hard brake applications, the brake light pressure switch may not activate the brake lights with a light application of the brake pedal.

Risk: If the brake lights fail to illuminate, there would not be a signal to other motorists that the vehicle is slowing, increasing the risk of a crash.

SEAT BELTS:FRONT:ANCHORAGE

Daimler Trucks North America LLC (DTNA) is recalling certain model year 2009-2014 Western Star 4900 vehicles manufactured May 27, 2008, through March 22, 2013. A potential misalignment of a clearance hole in the B-pillar reinforcement may affect the performance of the seatbelt D-ring anchorage point.

Risk: In the event of a crash, the seatbelt may not properly restrain the occupant, increasing the risk of injury.

ENGINE AND ENGINE COOLING:ENGINE:DIESEL

DAIMLER TRUCKS (DTNA) IS RECALLING CERTAIN MODEL YEAR 2006-2013 FREIGHTLINER, STERLING, AND WESTERN STAR VEHICLES, EQUIPPED WITH DETROIT DIESEL EPA07 AND EPA10, DD13 AND DD15/16 ENGINES, MANUFACTURED FROM JANUARY 20, 2006, THROUGH FEBRUARY 20, 2012. THE PUMP TO RAIL HIGH PRESSURE FUEL LINE SUPPORT SYSTEM USED ON THESE ENGINES IS SENSITIVE TO ASSEMBLY TORQUE AND MAY BE DAMAGED DURING SERVICE WORK. AS A RESULT OF OTHER REPAIRS, THE LINE SUPPORTS MAY LOOSEN, POTENTIALLY LEADING TO FUEL LINE CRACKING AND A FUEL LEAK.

Risk: A FUEL LEAK COULD CREATE A ROAD HAZARD, INCREASING THE RISK OF A CRASH. ALSO A FUEL LEAK IN THE PRESENCE OF AN IGNITION SOURCE CAN RESULT IN A FIRE.

POWER TRAIN:AXLE ASSEMBLY

DAIMLER TRUCKS IS RECALLING CERTAIN MODEL YEAR 2011 WESTERN STAR 4900 TRUCKS, MANUFACTURED FROM DECEMBER 14, 2010, THROUGH JANUARY 26, 2011, EQUIPPED WITH MERITOR AXLE ASSEMBLIES. THE WELD THAT ATTACHES A TOWER BRACKET TO THE HOUSING IN SUSPECT ASSEMBLIES MAY CRACK AS A RESULT OF IMPROPER WELDING PROCEDURES.

Risk: DETACHMENT OF THE BRACKET MAY LEAD TO A LOSS OF VEHICLE CONTROL INCREASING THE RISK OF A CRASH.

SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS

DTNA IS RECALLING CERTAIN MODEL YEAR 2011-2012 WESTERN STAR 4900 VEHICLES MANUFACTURED FROM APRIL 1, 2010, THROUGH MAY 13, 2011, WITH STANDARD CAB HEIGHT AND A DD13 ENGINE. THE SUPPLY AND DELIVERY AIRLINES FOR THE FOOT VALVE MAY CONTACT THE AIR INTAKE ON THE ENGINE. RELATIVE MOTION BETWEEN THE CAB AND THE ENGINE MAY ALLOW THE DELIVERY AIRLINES TO CHAFE ON THE AIR INTAKE.

Risk: A HOLE IN THE DELIVERY AIR LINE MAY DEVELOP, EVENTUALLY LEADING TO REDUCED BRAKING CAPACITY TO THE FRONT OR REAR BRAKES, INCREASING THE RISK OF A CRASH.

SERVICE BRAKES, AIR:SLACK ADJUSTERS:AUTOMATIC

DTNA IS RECALLING CERTAIN MODEL YEAR 2011 FREIGHTLINER CASCADIA, COLUMBIA GLIDER KIT, CORONADO, M2, AND WESTERN STAR4900 HEAVY TRUCKS MANUFACTURED FROM OCTOBER 16, 2010, THROUGH MARCH 9, 2011, EQUIPPED WITH GUNITE AUTOMATIC SLACK ADJUSTERS MANUFACTURED FROM OCTOBER 15, 2010, THROUGH JANUARY 31, 2011. DUE TO AN INCOMPLETE "KNITTING" OF THE IRON AT THE TIME OF CASTING, INADEQUATE STRUCTURAL INTEGRITY OF THE SLACK ADJUSTER HOUSING CAN OCCUR, WHICH COULD CAUSE THE HOUSING TO BREAK AT THE HANDLE UNDER NORMAL OPERATING LOADS.

Risk: IF THE SLACK ADJUSTER HOUSING WERE TO BREAK, THE WHEEL BRAKE TO WHICH THE SLACK ADJUSTER IS ATTACHED WOULD NO LONGER FUNCTION, CAUSING THE VEHICLE TO HAVE REDUCED BRAKING CAPACITY AND, IF MOUNTED ON THE STEER AXLE, THE VEHICLE COULD PULL TO ONE SIDE, POSSIBLY RESULTING IN A CRASH.

ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR

DAIMLER TRUCKS IS RECALLING CERTAIN MODEL YEAR 2011 FREIGHTLINER CASCADIA AND CONORADO AND WESTERN STAR 4900 HEAVY TRUCKS MANUFACTURED FROM APRIL 22, 2010, THROUGH JANUARY 28, 2011, EQUIPPED WITH AN EPA10 ISX ENGINE. THE ROUTING AND SECURING OF THE ALTERNATOR CABLES MAY ALLOW THE CABLE TO CONTACT OR NEARLY CONTACT AN ENGINE HEAT SHIELD POTENTIALLY DAMAGING THE CABLE INSULATION.

Risk: A POSITIVE ALTERNATOR CABLE, WITH DAMAGED INSULATION, THAT MAY CONTACT A GROUNDED COMPONENT CAN CAUSE A SHORT CIRCUIT THAT CAN RESULT IN A FIRE.

ENGINE AND ENGINE COOLING:ENGINE:DIESEL

DAIMLER TRUCKS (DTNA) IS RECALLING CERTAIN MODEL YEAR 2011 AND 2012 FREIGHTLINER BUSINESS CLASS M2 AND WESTERN STAR 4900 EMERGENCY VEHICLES MANUFACTURED FROM JULY 2, 2010, THROUGH DECEMBER 13, 2011, EQUIPPED WITH A DD13 EPA10 DETROIT DIESEL ENGINE. THE ENGINE SHUTDOWN SOFTWARE NORMALLY PROVIDED TO PROTECT THE ENGINE AND VEHICLE MAY NOT HAVE BEEN DISABLED ON ENGINES INTENDED FOR EMERGENCY VEHICLE APPLICATIONS.

Risk: IF THE VEHICLE OPERATOR RECEIVES AND IGNORES MULTIPLE WARNINGS INDICATING THE NEED FOR OPERATOR INTERVENTION, THE ENGINE MAY SHUT DOWN UNEXPECTEDLY. UNEXPECTED EMERGENCY VEHICLE ENGINE SHUTDOWN UNDER CERTAIN CONDITIONS COULD HAMPER RESCUE OPERATIONS AND PLACE THE PUBLIC AT RISK.

ENGINE AND ENGINE COOLING

DAIMLER TRUCKS (DTNA) IS RECALLING CERTAIN MODEL YEAR 2006 THROUGH 2011 FREIGHTLINER, CASCADIA, CENTURY, COLUMBIA FLD, AND M2, STERLING 9500, AND WESTERN STAR 4900 HEAVY TRUCKS MANUFACTURED FROM MARCH 20, 2006, THROUGH JUNE 30, 2010, EQUIPPED WITH SPECIFIC MBE4000 EPA07 MODEL ENGINES. THE INTAKE AIR GRID HEATER MAY SHORT CIRCUIT AND FAIL DUE TO EXCESSIVE INTERNAL TEMPERATURES.

Risk: A SHORT CIRCUITED GRID HEATER COULD RESULT IN A VEHICLE FIRE AND INJURY TO VEHICLE OCCUPANTS.

FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP

DAIMLER TRUCKS IS RECALLING CERTAIN MODEL YEAR 2009 THROUGH 2011 FREIGHTLINER CASCADIA, CENTURY, COLUMBIA, CORONADO, M2, AND WESTERN STAR 4900 HEAVY TRUCKS MANUFACTURED FROM FEBRUARY 19, 2009, THROUGH JULY 9, 2010, EQUIPPED WITH SPECIFIC DD13 AND DD15 ENGINES ASSEMBLED WITH A BOSCH HIGH PRESSURE FUEL PUMP ELEMENT WHICH MAY DEVELOP A CRACK DUE TO HYDROGEN INDUCED STRESS CORROSION. THE CRACK MAY RESULT IN A DIESEL FUEL LEAK.

Risk: IF A DIESEL FUEL LEAK CONTINUES UNDETECTED, FUEL MAY SPILL ONTO THE ROADWAY INCREASING THE RISK OF A CRASH.

ENGINE AND ENGINE COOLING

DAIMLER TRUCKS IS RECALLING CERTAIN MODEL YEAR 2007 THROUGH 2011 FREIGHTLINER, FCCC, STERLING, AND WESTERN STAR HEAVY TRUCKS MANUFACTURED FROM SEPTEMBER 5, 2006, THROUGH JUNE 30, 2010, EQUIPPED WITH SPECIFIC MBE900 EPA04 AND EPA07 MODEL ENGINES. THE INTAKE AIR GRID HEATER MAY SHORT CIRCUIT AND FAIL DUE TO EXCESSIVE INTERNAL TEMPERATURES.

Risk: A SHORT CIRCUITED GRID HEATER COULD RESULT IN A VEHICLE FIRE AND INJURY TO VEHICLE OCCUPANTS.

FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP

DAIMLER TRUCKS IS RECALLING CERTAIN MODEL YEAR 2009 THROUGH 2011 FREIGHTLINER CASCADIA, CENTURY, COLUMBIA, CORONADO, M2, AND WESTERN STAR 4900 HEAVY TRUCKS MANUFACTURED FROM FEBRUARY 19, 2009 THROUGH JULY 9, 2010, EQUIPPED WITH SPECIFIC DD13 AND DD15 ENGINES ASSEMBLED WITH A BOSCH HIGH PRESSURE FUEL PUMP ELEMENT WHICH MAY DEVELOP A CRACK DUE TO HYDROGEN INDUCED STRESS CORROSION. OVER TIME THE BARREL OF THE BOSCH HIGH PRESSURE FUEL PUMP ELEMENT USED ON SPECIFIC DD13/DD15 ENGINES MAY DEVELOP A CRACK DUE TO HYDROGEN INDUCED STRESS CORROSION RESULTING IN A DIESEL FUEL LEAK.

Risk: IF A DIESEL FUEL LEAK CONTINUES UNDETECTED, FUEL MAY SPILL ONTO THE ROADWAY POTENTIALLY RESULTING IN A CRASH.