ON CERTAIN TRUCKS AND BUSES EQUIPPED WITH CUMMINS ELECTRONIC CONTROL MODULES ON THE C8.3G AND L10G ENGINES, THE ECM DOES NOT HAVE THE ABILITY TO DETECT A THROTTLE FAIL-SAFE ENGINE SHUTDOWN COMMAND. THIS COULD RESULT IN AN UNANTICIPATED, UNCOMMANDED OPEN THROTTLE CONDITION WITHOUT WARNING.
VEHICLE DESCRIPTION: TRUCK/TRAILERS. THE CERTIFICATION LABELS INSTALLED ON THESE VEHICLES ARE INCORRECT. THE GROSS AXLE WEIGHT RATING IS TOO HIGH FOR THE TIRES THAT WERE INSTALLED.
THE PARKING BRAKE LEVER MAY NOT TRAVEL FAR ENOUGH OVER CENTER TO ASSURE THAT IT REMAINS IN THE PROPER POSITION ALLOWING THE VEHICLE TO ROLL AWAY WHILE PARKED.
AIR SYSTEM BLOCKAGE IN THE AIR DRYER OCCURS DEGRADING THE MOISTURE REMOVING CAPABILITIES OF THE DRYER WHEN THE VEHICLE IS OPERATED IN A COLD ENVIRONMENT AND MOISTURE ACCUMULATES AND FREEZES IN THE AIR DRYER OR IN THE LINE BETWEEN THE DRYER AND THE AIR SYSTEM RESERVOIR. THE AIR DRYER CAN BECOME OVER PRESSURIZED CAUSING THE AIR DRYER CARTRIDGE TO SEPARATE FROM THE MOUNTING BASE.
THE BRAKE CHAMBER MOUNTING STUDS CAN LOOSEN OR PULL THROUGH DUE TO FATIGUE IN THE BRAKE CHAMBER HOUSING CAUSED BY FOUNDATION BRAKE CHATTER.