2008 AUTOCAR ACX

ENGINE AND ENGINE COOLING:ENGINE

Autocar, LLC (Autocar) is recalling certain model year 2008-2014 ACX, WX, and WXLL vehicles manufactured July 30, 2007, through February 10, 2014, and equipped with certain Cummins Westport Model ISL G or ISX12 G engines. Condensation in the intake manifold may freeze during cold weather conditions and interfere with the proper operation of the intake manifold pressure sensor.

Risk: The improper operation of the sensor could induce elevated exhaust temperatures or flames from the exhaust pipe, increasing the risk of a vehicle fire or burn injury to a person near the exhaust pipe.

SERVICE BRAKES, AIR

Autocar, LLC is recalling certain model year 2005-2013 ACX, WX, and WXLL trucks built November 16, 2004, through September 10, 2012. On the affected vehicles, the air brake systems were built without the required air tank drain valve. Therefore, these vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 121, "Air Brake Systems."

Risk: Air tanks with valves omitted will not drain if moisture is introduced into the tank, potentially reducing air capacity in the air brake system, which could cause a reduction in brake performance and equipment durability, thus increasing the risk of a crash.

ELECTRICAL SYSTEM:IGNITION

AUTOCAR IS RECALLING CERTAIN MODEL YEAR 2008-2009 ACX HEAVY DUTY CLASS 8 VEHICLES MANUFACTURED FROM NOVEMBER 30, 2007 THROUGH AUGUST 3, 2010. WATER INTRUSION IN THE IGNITION RELAY MAY LEAD TO CORROSION, WHICH MAY SHORT-CIRCUIT THE RELAY CAUSING THE PART TO FAIL.

Risk: FAILURE OF THE RELAY COULD CAUSE THE ENGINE TO SHUT DOWN WITHOUT WARNING OR FAIL TO START INCREASING THE RISK OF A CRASH.