United States 99V350000
INTERNATIONAL TRUCK & ENGINE CORPORATION
The problem
VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS. THE CHECK VALVES IN THE AIR BRAKE SYSTEM ON THESE VEHICLES DO NOT MEET THE REQUIREMENTS OF FMVSS NO. 121, "AIR BRAKE SYSTEMS."
Risk
INCREASED BRAKING EFFORT MAY BE REQUIRED.
What owners should do
DEALERS WILL INSTALL NEW CHECK VALVES ON THE VEHICLES INVOLVED.
Units 254