1993 INTERNATIONAL HARVESTER 3600 Recalls (6)

Campaign:
93V025000 on 02/25/1993
Component:
Vehicle speed control:linkages
Manufactured:
02/28/1991 - 10/31/1992
Affected:
598
Defect:
The bracket that supports and positions the hand throttle cable at the accelerator rod can be bent or misaligned during body assembly to the chassis.
Consequence:
Bent or misaligned throttle cables can cause theaccelerator to stick in partial to full throttle position, resulting a unwantedvehicle speed and a possible vehicle accident.
Correction:
Replace the current throttle cable bracket with a new bracket; install at a different location.
Notes:
System: fuel system.vehicle description: buses equipped with hand throttles.
Campaign:
93V092000 on 05/26/1993
Component:
Suspension:rear:springs:air suspension system
Manufactured:
12/31/1989 - 02/28/1993
Affected:
193
Defect:
The pressure relief valve was omitted in the air tank. the air tank is the reservoir for the air suspension and is not brake related. without the pressure relief valve, there is no back-up system to limit air pressure in the air suspension system.
Consequence:
Lack of a back-up system to limit air pressure build upcan cause excessive pressure in the air tank and can cause the tank to rupture.this can result in personal injury to anyone in the vicinity.
Correction:
Install a pressure relief valve in the air tank.
Notes:
System: suspension.vehicle description: school buses: models 4700 and 4900; heavy trucks: models3600, 3700, 3800, and 3900fg; incomplete chassis: model 1652sc.
Campaign:
93V188000 on 11/28/1993
Component:
Service brakes, hydraulic:foundation components:hoses, lines/piping, and fittings
Manufactured:
10/31/1991 - 08/31/1993
Affected:
942
Defect:
The hydraulic steel brake lines from the master cylinder to the frame fittings are experiencing vertical flexing which causes fatigue cracks at the frame end of the assembly, resulting in brake fluid leakage. this can occur in one or both of the steel brake lines. in either case, the brake warning light will come on and the low pressure buzzer will activate.
Consequence:
Should a crack and leakage develop in one of the lines,half of the braking system capability could be lost, impairing the stoppingability of the vehicle. if both brake lines fail, the entire service brakingsystem will become inoperative. in either case, an accident could result,causing damage to the vehicle and personal injury.
Correction:
Navistar dealers will install a new, redesigned primary and secondary brake line from the master cylinder to the frame rail fittings.
Notes:
System: brakes; hydraulic; lines; metallic.vehicle description: school buses equipped with hydraulic brakes.note: if your vehicle is presented to an authorized dealer on an agreed uponservice date and the remedy is not provided within a reasonable time and freeof charge or the remedy does not correct the defect or noncompliance, you canobtain assistance by following the procedure described in the owner assistanceguide of your owner's manual. also, contact the national highway trafficsafety administration's auto safety hotline at 1-800-424-9393.
Campaign:
95V179000 on 09/24/1995
Component:
Fuel system, gasoline:delivery:hoses, lines/piping, and fittings
Manufactured:
10/31/1991 - 01/31/1994
Affected:
745
Defect:
The fuel hose to the fuel filter is routed too close to the alternator belt causing the alternator belt to rub the fuel hose. this can cause a fuel leak.
Consequence:
Fuel leakage can result in a vehicle fire if an ignition source is present.
Correction:
Dealers will strap the fuel hose to the chassis frame to insure a minimum of 2 1/2" clearance between the fuel hose and the alternator belt.
Notes:
System: fuel; fuel lines; hoses; non-metallic.vehicle description: school and transit buses equipped with a 7.3 liter international diesel engine (engine codes 12nab, 12nac, and 12nad).note: 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 navistar international at 1-800-448-7825. also contact the national highway traffic safety administration's auto safety hotline at 1-800-424-9393.
Campaign:
96V174000 on 09/24/1996
Component:
Service brakes, hydraulic:antilock
Manufactured:
01/29/1992 - 09/02/1996
Affected:
580
Defect:
The wiring from the electronic control unit was connected to the wrong wheel sensor or to the wrong brake modulator valve. it is possible that either or both wiring may have occurred at either the front or rear axle or both axles.
Consequence:
Should the anti-lock braking system (abs) wiring be crossed, it would result in a significant degradation in vehicle stopping distance. a signal would be sent to the wrong brake chamber when a brake imbalance is detected. this condition increases the risk of a vehicle accident.
Correction:
Dealers will inspect the abs wiring and, if necessary, properly connect.
Notes:
Owner notification:owner notification is expected to begin october 8, 1996.note: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 navistar at 1-800-448-7825.also contact the national highway traffic safety administration's auto safety hotline at 1-800-424-9393.
Campaign:
96V192000 on 11/13/1996
Component:
Exterior lighting:turn signal:switch
Manufactured:
12/31/1980 - 07/31/1994
Affected:
171,638
Defect:
These buses have a turn signal lever that will not operate consistently in the lane change mode if the lever is not moved to the position where resistance to movement is felt.
Consequence:
Should the rear signal lamps not flash when a lane change was being made, it could result in a vehicle following the bus to collide with the bus increasing the risk of personal injury and/or property damage.
Correction:
Operators will be mailed information concerning the proper method of using turn signals. a decal will also be provided to be placed on the instrument panel of each bus.
Notes:
Owner notification:information and decals will be mailed to owner beginning december 10, 1996.note:owners not receiving this information free of charge within a reasonable time should contact navistar at 1-800-448-7825.also contact the national highway traffic safety administration's auto safety hotline at 1-800-424-9393.

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