International Harvester 4800 recalls by model year

Reported: 1993-03-18 (March 18, 1993) · Model years: 1991, 1992, 1993

THE TIE ROD USED ON THE DANA FA-64 FRONT DRIVE AXLE HAS A THREADED SLEEVE TO PERMIT TOE-IN ADJUSTMENT WITHOUT REMOVING AN END. THE TIE ROD BAR IS NECKED DOWN TO INCORPORATE THE SLEEVE. A STRESS RISER IS CREATED AT THE THREADED PORTION OF THE ADJUSTMENT SLEEVE WHICH MAY CAUSE A FATIGUE FRACTURE AND FAILURE OF THE TIE ROD WHERE IT SCREWS INTO THE SLEEVE.

Consequence: FAILURE OF THE TIE ROD ON THE FRONT AXLE RESULTS IN LOSSOF STEERING CONTROL AND A POSSIBLE VEHICLE CRASH.

Remedy: REPLACE THE TIE ROD WITH A TIE ROD THAT DOES NOT USE AN ADJUSTMENT SLEEVE.

Reported: 1994-08-02 (August 2, 1994) · Model years: 1994, 1995

FOUR COMPRESSION BACKPLATE RETAINING FASTENERS ON THE TURBO-CHARGER WERE TORQUED ONLY HAND TIGHT. THIS ALLOWS THE FASTENERS TO LOOSEN, AND CAUSES OIL TO LEAK INTO THE COMPRESSOR AIR SIDE OF THE TURBO-CHARGER WHICH, WHEN COUPLED WITH THE HEAT PRECIPITATED BY THE COMPRESSOR AND THE MIXING ACTION OF THE COMPRESSOR WHEEL, CAN RESULT IN AN AIR/OIL MIXTURE THAT FUELS THE ENGINE.

Consequence: WHEN THIS OCCURS, ENGINE RUN-ON AND SUBSEQUENT LOSS OF OPERATOR CONTROL VIA THE NORMAL THROTTLE MECHANISM CAN OCCUR, WHICH COULD RESULT IN A VEHICLE ACCIDENT.

Remedy: REPLACE THE SUSPECT TURBO-CHARGER WITH A NEW TURBO-CHARGER.

Reported: 1996-11-22 (November 22, 1996) · Model years: 1997

THE DRIVE AXLE HOUSINGS CONSIST OF A PLATE STEEL CENTER SECTION AND TWO FORGED SPINDLES, ONE OF WHICH IS WELDED TO EACH END OF THE CENTER SECTION. EACH SPINDLE CONTAINS A KEYWAY SLOT IN WHICH THE LOCKING TAB FOR THE WHEEL BEARING NUT LOCKING MECHANISM IS INSERTED. THE LENGTH OF THE KEYWAY SLOT MAY NOT BE LONG ENOUGH TO ACCOMMODATE THE TAB CAUSING THE TAB TO BE DEFORMED OR DAMAGED DURING INSTALLATION.

Consequence: THIS LOCKING TAB PREVENTS THE WHEEL BEARING NUT FROM LOOSENING DURING VEHICLE OPERATION. IF THIS TAB IS DEFORMED, THE NUT CAN LOOSEN ALLOWING THE WHEEL TO SEPARATE FROM THE AXLE INCREASING THE RISK OF A VEHICLE ACCIDENT.

Remedy: DEALERS WILL REPLACE THE DRIVE AXLE HOUSING NUTS WITH A CONVENTIONAL WHEEL NUT HARDWARE SYSTEM.

Reported: 2002-05-20 (May 20, 2002) · Model years: 1998, 1999, 2000, 2001

ON CERTAIN MEDIUM AND HEAVY DUTY TRUCKS, A BRASS FITTING CONNECTS THE DOUBLE CHECK VALVE TO THE BRAKE RELAY VALVE. WITH CERTAIN INPUTS TO THE VEHICLE, THE WEIGHT OF THE CHECK VALVE ON THE FITTING CAN CAUSE THE ASSEMBLY TO RESONATE. THE SUBJECT VIBRATION CAN CAUSE EXCESSIVE STRAIN LEVELS IN THE FITTING, WHICH COULD EVENTUALLY FATIGUE AND FAIL.

Consequence: IF THE FITTING BREAKS, THE REAR SERVICE BRAKES WILL CEASE TO OPERATE WITHOUT WARNING, RESULTING IN AN EXTENDED STOPPING DISTANCE, INCREASING THE RISK OF A CRASH.

Remedy: DEALERS WILL INSTALL A KIT TO REMOUNT THE DOUBLE CHECK VALVE WITH A FLEXIBLE HOSE ON THE MAJORITY OF VEHICLES. ON A SMALL NUMBER OF UNITS WITH CLEARANCE ISSUES OR TRACTION CONTROL, A KIT WITH A NEW RELAY VALVE THAT HAS A BUILT-IN DOUBLE CHECK VALVE WILL BE INSTALLED. OWNER NOTIFICATION BEGAN SEPTEMBER 11, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT INTERNATIONAL AT 1-800-448-7825.

Reported: 2003-04-03 (April 3, 2003) · Model years: 1998, 1999, 2000, 2001

ON CERTAIN HEAVY DUTY TRUCKS, A BRASS FITTING CONNECTS THE DOUBLE CHECK VALVE TO THE BRAKE RELAY VALVE. WITH CERTAIN INPUTS TO THE VEHICLE, THE WEIGHT OF THE CHECK VALVE ON THE FITTING CAN CAUSE THE ASSEMBLY TO RESONATE. THE SUBJECT VIBRATION CAN CAUSE EXCESSIVE STRAIN LEVELS IN THE FITTING, WHICH COULD EVENTUALLY FATIGUE AND FAIL.

Consequence: IF THE FITTING BREAKS, THE REAR SERVICE BRAKES WILL CEASE TO OPERATE WITHOUT WARNING, RESULTING IN AN EXTENDED STOPPING DISTANCE, INCREASING THE RISK OF A CRASH.

Remedy: DEALERS WILL INSTALL A KIT TO REMOUNT THE DOUBLE CHECK VALVE WITH A FLEXIBLE HOSE ON THE MAJORITY OF VEHICLES. ON A SMALL NUMBER OF UNITS WITH CLEARANCE ISSUES OR TRACTION CONTROL, A KIT WITH A NEW RELAY VALVE THAT HAS A BUILT-IN DOUBLE CHECK VALVE WILL BE INSTALLED. OWNER NOTIFICATION BEGAN ON APRIL 18, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT INTERNATIONAL AT 1-800-448-7825.

Reported: 2003-10-22 (October 22, 2003) · Model years: 1999, 2000, 2001

ON CERTAIN 4X4 VEHICLES EQUIPPED WITH A FABCO TC-200 TRANSFER CASE, AN EXCESSIVE FRONT DRIVE SHAFT ANGLE MAY CAUSE ACCELERATED WEAR AND FAILURE OF THE DRIVE SHAFT AND RELATED COMPONENTS.

Consequence: THIS FAILURE CAN CAUSE THE FRONT DRIVE SHAFT TO BECOME SEPARATED FROM THE VEHICLE WITHOUT WARNING AND FALL INTO THE PATH OF OTHER VEHICLES ON THE HIGHWAY RESULTING IN PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH.

Remedy: DEALERS WILL INSPECT AND REPLACE THE EXISTING FRONT DRIVE SHAFT WITH A DOUBLE-CARDAN TYPE SHAFT. THE OWNERS WILL BE NOTIFIED BEGINNING ON FEBRUARY 28, 2005, CONCERNING THE FINAL REMEDY FOR THESE VEHICLES. OWNERS SHOULD CONTACT INTERNATIONAL TRUCK AT 1-800-448-7825. INTERIM NOTICES WERE MAILED TO OWNERS DURING DECEMBER 2003. AN ADDITIONAL INTERIM NOTICE WAS MAILED TO OWNERS DURING JULY 2004, ADVISING OWNERS OF THE REPAIR PROCEDURES BUT NO PARTS WILL BE AVAILABLE UNTIL DECEMBER 2004.