AS A RESULT OF INHERENT VIBRATION IN THESE ENGINES, THE THROTTLE RETURN SPRINGS CAN FRACTURE.
IF ONE OF THE TWO RETURN SPRINGS FRACTURES WHILE THEVEHICLE IS BEING DRIVEN, A SUBSTANTIAL REDUCTION IN ACCELERATOR PEDAL EFFORTWOULD BE FELT. IF THE SECOND SPRING ALSO FRACTURES, THE THROTTLE WOULD NOTRETURN TO IDLE POSITION AND CAN RESULT IN INCREASED ENGINE SPEED AND THEPOSSIBILITY OF LOSS OF VEHICLE CONTROL AND AN ACCIDENT.
THE THROTTLE RETURN CONTROL SYSTEM WITH THE COIL TORSION SPRING DESIGN WILL BE REPLACED.
SYSTEM: FUEL: THROTTLE LINKAGES AND CONTROL RETURN SPRING.VEHICLE DESCRIPTION: MEDIUM AND HEAVY TRUCKS, TRUCK CHASSIS, AND BUS CHASSISEQUIPPED WITH CUMMINS 5.9L AND 8.3L DIESEL ENGINES WITH IN-LINE FUEL INJECTIONPUMPS.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 IS DOES NOT CORRECT THE DEFECT OR NONCOMPLIANCE, PLEASECONTACT THE FORD SERVICE CENTER AT 1-800-392-3673. ALSO, CONTACT THE NATIONALHIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.