ON CERTAIN 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.
Safety risk
IF THIS EVENT OCCURS, THE VEHICLE OPERATOR WILL NOT HAVE CONTROL OF THE ENGINE SPEED, POSSIBLY RESULTING IN A VEHICLE CRASH.
Manufacturer remedy
CUMMINS WILL NOTIFY THE CUSTOMERS AND REPLACE THE ECM. OWNERS SHOULD CONTACT CUMMINS AT 1-800-343-7357 OR NEOPLAN AT 719-336-3256, EXT. 476.
VEHICLE DESCRIPTION: TRANSIT BUSES. FAILURE OF A SOFT SEAT CHECK VALVE IN WHEELCHAIR LIFTS PROVIDED BY LIFT-U, MAY ALLOW THE FRONT AND REAR PLATFORM BARRIERS TO RETURN TO A HORIZONTAL POSITION FROM THE VERTICAL POSITION THEY ARE SUPPOSED TO BE LOCKED IN.
Safety risk
THIS COULD ALLOW A MOBILITY AID TO ROLL OFF OF THE LIFT PLATFORM INJURING ITS OCCUPANT. LIFT-U WILL REPLACE THE SOFT SEAT CHECK VALVES.
Fuel system, other: delivery: hoses, lines/piping, and fittings
Manufacturer
NEOPLAN USA CORP.
Vehicles affected
594
Reported to NHTSA
1998-11-19
Owners notified
1998-11-30
Defect description
VEHICLE DESCRIPTION: TRANSIT COACHES EQUIPPED WITH CUMMINS L-10 ENGINES AND NELSON CATALYSTS AND SOLD TO LOS ANGELES, CALIFORNIA TRANSIT AUTHORITY. THE CATALYST CAN EXPERIENCE HIGH TEMPERATURES, WHICH COULD BE CAUSED FROM UNBURNED METHANE IGNITING INSIDE THE CATALYST BRICK.
Safety risk
THIS CONDITION CAN RESULT IN EXTREME OVERHEATING OF THE CATALYST AND COULD CAUSE IGNITION OF SURROUNDING COMBUSTIBLES IN CLOSE PROXIMITY TO THE CATALYST.
Manufacturer remedy
DEALERS WILL INSPECT THE VEHICLES FOR PROPER INSTALLATION AND POSITIONING; INCREASE THE SIZE OF THE FIBERGLASS HOLE SURROUNDING THE TAIL PIPE, REMOVE A RUBBER AIR INLET BOOT THAT WAS TOO CLOSE TO THE CATALYST; REPLACE THE FLEX PIPE IN THE EXHAUST SYSTEM; AND ADD A BLANKET AROUND THE CATALYST TO PROVIDE ADDED INSULATION.
Owner complaints
A complaint is one person's report to a federal agency. It is not a finding.
Component
Complaints
Median mileage
Engine and engine cooling: exhaust system: emission control: catalytic convertor
1
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The 1996 model has roughly the same number of complaints as this one. The 1998 model has roughly the same number of complaints as this one. These figures reflect raw complaint counts, not failure rates. Higher-selling model years naturally receive more complaints.
Safety recall repairs are provided free of charge by franchised dealers, regardless of vehicle age or mileage. This page displays aggregated data for the model year. To check recall status for a specific vehicle, search its VIN at nhtsa.gov.