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NHTSA Campaign 99V351000

SERVICE BRAKES, AIR

Issued by INTERNATIONAL TRUCK AND ENGINE · Reported Dec 14, 1999 · 944 vehicles affected

What's wrong

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS. THERE IS INTERFERENCE BETWEEN THE AIR BRAKE S-CAM AND THE END OF ONE OF THE KNUCKLE STUDS. AS THE BRAKE SHOE LINING WEARS, THE S-CAM ROTATION MAY BE LIMITED BY THE INTERFERING KNUCKLE STUD. IF THE S-CAM CAN NOT ROTATE THROUGH ITS FULL RANGE OF MOTION, THE BRAKING FORCE CAN NOT BE FULLY TRANSMITTED FROM THE BRAKE SHOE LININGS TO THE BRAKE DRUMS.

Consequence

THIS COULD RESULT IN A LONGER STOPPING DISTANCE OR A DRAGGING BRAKE CONDITION.

Remedy

DEALERS WILL SHORTEN THE INTERFERING KNUCKLE STUD TO ELIMINATE THE CLEARANCE PROBLEM.

Vehicles affected by this recall

Make Model Year Units
NAVISTAR 4800 1994 944
NAVISTAR 4800 1995 944
NAVISTAR 4800 1996 944
NAVISTAR 4800 1997 944
NAVISTAR 4800 1998 944
NAVISTAR 4800 1999 944
NAVISTAR 4900 1994 944
NAVISTAR 4900 1995 944
NAVISTAR 4900 1996 944
NAVISTAR 4900 1997 944
NAVISTAR 4900 1998 944
NAVISTAR 4900 1999 944

Source: NHTSA Campaign 99V351000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.