On certain Mitsubishi trucks, the cylinder head idler gear bushing may have been improperly machined, causing excessive stress on the cylinder head idler gear shaft. Continued operating in this condition could cause the idler gear shaft flance to break and generate abnormal engine noise or engine oil leaks. As a result, the engine could stall and would ot restart, increasing the risk of a crash.
Manufacturer : MITSUBISHI FUSO TRUCK OF AMERICA, INC.
NHTSA CAMPAIGN ID Number : 07V138000
Mfg's Report Date : MAR 22, 2007
Component: ENGINE AND ENGINE COOLING
Potential Number Of Units Affected : 8712
Summary: ON CERTAIN TRUCKS, THE CYLINDER HEAD IDLER GEAR BUSHING MAY HAVE BEEN IMPROPERLY MACHINED, CAUSING EXCESSIVE STRESS ON THE CYLINDER HEAD IDLER GEAR SHAFT. CONTINUED OPERATING IN THIS CONDITION COULD CAUSE THE IDLER GEAR SHAFT FLANGE TO BREAK AND GENERATE ABNORMAL ENGINE NOISE OR ENGINE OIL LEAKS.
Consequence: THE ENGINE COULD STALL AND WOULD NOT RESTART INCREASING THE RISK OF A CRASH.
Remedy: ON VEHICLES WITH LESS THAN 15,000 MILES, IF THE IDLER GEAR AND BUSHING ASSEMBLY, IDLER GEAR SHAFT AND BOLT WILL BE REPLACED. IF THE MILEAGE IS MORE THAN 15,000 MILES, THE INSIDE DIAMETER OF THE IDLER GEAR BUSHING WILL BE MEASURED AND IF THE BUSHING MEASURES MORE THAN 32.043MM (1.262"), THE IDLER GEAR AND BUSHING ASSEMBLY, IDLER GEAR SHAFT AND BOLT WILL BE REPLACED. THE RECALL IS EXPECTED TO BEGIN ON OR ABOUT MAY 11, 2007. OWNERS MAY CONTACT MITSUBISHI FUSO AT 1-856-467-4500.
Notes: MITSUBISHI FUSO RECALL NO. C1002210. CUSTOMERS MAY CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATIONS VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY: 1-800-424-9153); OR GO TO HTTP://WWW.SAFERCAR.GOV.
