Fuel system, gasoline: delivery: fuel pump
- Component
- Fuel system, gasoline: delivery: fuel pump
- Manufacturer
- CARPENTER INDUSTRIES, INC.
- Vehicles affected
- 101
- Reported to NHTSA
- 1996-09-12
- Owners notified
- 1996-09-06
Defect description
THE INCORRECT ELECTRICALMOTOR WAS INSTALLED ON THE FUEL PUMP THAT SUPPLIES FUEL TO THE ENGINE. THE MOTOR WAS SPECIFIED TO BE A CONTINUOUS DUTY MOTOR AND THE MOTORS INSTALLED WERE INTERMITTENT DUTY MOTORS. THE INTERMITTENT DUTY MOTORS UNDER CERTAIN CONDITIONS WILL OVERHEAT RESULTIN IN A THERMAL SWITCH SHUT DOWN OF THE ELECTRIC MOTOR.
Safety risk
THIS CONDITION WILL STOP THE FLOW OF FUEL TO THE BUS ENGINE AND THE VEHICLE WILL THEN STALL INCREASING THE POTENTIAL FOR A VEHICLE ACCIDENT.
Manufacturer remedy
DEALERS WILL REPLACE ALL THE INTERMITTENT DUTY MOTORS WITH CONTINUOUS DUTY CYCLE MOTORS.