INTERNATIONAL 9900

ENGINE AND ENGINE COOLING:ENGINE:DIESEL

Navistar, Inc. (Navistar) is recalling certain model year 2017 International ProStar, LoneStar, PayStar, HX, and 9900 trucks equipped with a Cummins ISX15L engine using certain engine control modules (ECM). These ECM's may experience an internal electrical short that can cause a fuse to blow, resulting in an unexpected engine stall without the ability to restart the engine.

Risk: An engine stall can increase the risk of a crash.

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

Navistar, Inc. (Navistar) is recalling certain model year 2015-2016 International 9900 trucks manufactured January 6, 2014, to March 12, 2015, and 2015-2016 International Lonestar trucks manufactured February 20, 2014, to March 13, 2015. The affected vehicles are equipped with a 6" diameter stack tail pipe, that may not have sufficient support. The unsupported weight of the upper stack tail pipe and vibration associated with normal vehicle operation over time may cause a crack of the weld joint between the inlet pipe and the flare expansion of the stack tail pipe, which may result in partial or full separation of the stack tail pipe from the vertical exhaust pipe.

Risk: If the stack tail pipe separates from the exhaust pipe it can fall into the roadway possibly hitting another vehicle, increasing the risk of a crash.

SERVICE BRAKES, AIR

Navistar, Inc. (Navistar) is recalling certain model year 2015-2016 International 9900, DuraStar, LoneStar, PayStar, ProStar, WorkStar and 2015 International TranStar and IC Bus CE vehicles equipped with a Haldex air braking system. The affected brake actuators may have been manufactured with an incomplete attachment of the internal rubber diaphragm to the actuation mechanism. This could cause dragging or overheated brakes.

Risk: If the brakes drag and overheat there is an increased risk of a wheel end fire.

SERVICE BRAKES

Navistar Inc., is recalling certain model year 2012-2013 International Lonestar, Paystar, Prostar, Workstar and 9900 trucks, equipped with feature code 0504501, 0504504, or 04EWM Reduced Stopping Distance (RSD) brake linings and with or without feature code 04WCS Greased For Life front air S-cam brakes. In the affected vehicles, the brake S-cam brackets may fracture.

Risk: S-cam bracket fractures may result in an inoperative brake on the affected wheel. This will cause the vehicle to pull to one side unexpectedly during braking and/or increase the stopping distance. Either result may increase the risk of a crash.

SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE

NAVISTAR IS RECALLING CERTAIN MODEL YEAR 2012-2013 IC BUS CE-C, HC, AND INTERNATIONAL 9400 AND CERTAIN MODEL YEAR 2011 THROUGH 2013 INTERNATIONAL DURASTAR, PAYSTAR, WORKSTAR, TRANSTAR, LONESTAR, PROSTAR, 9200, AND 9800, AND CERTAIN MODEL YEAR 2013 INTERNATIONAL 9900, VEHICLES, MANUFACTURED FROM DECEMBER 2, 2010, THROUGH JANUARY 26, 2012, AND EQUIPPED WITH BENDIX ATR-6 TRACTION RELAY VALVES. IN EXTREMELY COLD CONDITIONS, THESE BENDIX RELAY VALVES MAY POTENTIALLY DEVELOP INTERNAL LEAKAGE. INTERNAL LEAKAGE CAN LEAD TO AIR PRESSURE BEING DELIVERED TO AFFECTED PRIMARY OR SECONDARY BRAKES CAUSING CONTINUOUS BRAKE APPLICATION.

Risk: UNEXPECTED CONTINUOUS BRAKE APPLICATION CAN CAUSE THE BRAKES TO OVERHEAT AND LEAD TO A FIRE. UNEXPECTED CONTINUOUS BRAKE APPLICATION CAN CAUSE THE DRIVER TO LOSE CONTROL OF THE VEHICLE, INCREASING THE RISK OF A CRASH. ALSO, THE BRAKES MAY BE APPLIED WITHOUT ILLUMINATING THE BRAKE LIGHTS, FAILING TO GIVE PROPER WARNING TO OTHER DRIVERS.