Engine and engine cooling
- Component
- Engine and engine cooling
- Manufacturer
- MITSUBISHI FUSO TRUCK OF AMERICA, INC.
- Vehicles affected
- 301
- Reported to NHTSA
- 2005-09-15
- Owners notified
- 2005-12-20
Defect description
ON CERTAIN TRUCKS, THE CYLINDER HEAD IDLER GEAR BUSHING MAY HAVE BEEN IMPROPERLY MACHINED, CAUSING EXCESSIVE STRESS ON THE CYLINDER HEAD GEAR SHAFT.
Safety risk
CONTINUED OPERATION IN THIS CONDITION COULD CAUSE THE IDLER GEAR SHAFT FLANGE TO BREAK AND GENERATE ABNORMAL ENGINE NOISE AND/OR ENGINE OIL LEAKS. IN THE WORST CASE, THE ENGINE COULD STALL AND WOULD NOT RESTART, INCREASING THE RISK OF A CRASH.
Manufacturer remedy
DEALERS WILL MEASURE THE INSIDE DIAMETER OF THE CYLINDER HEAD IDLER GEAR BUSHING. IF THE BUSHING IS OUT OF SPECIFICATION, DEALERS WILL REPLACE THE IDLER GEAR BUSHING, IDLER GEAR SHAFT, AND IDLER GEAR ASSEMBLY FREE OF CHARGE. THE RECALL BEGAN ON DECEMBER 20, 2005. OWNERS MAY CONTACT MITSUBISHI FUSO AT 1-856-467-4500.