2014 INTERNATIONAL TRANSTAR

VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR

Navistar, Inc. (Navistar) is recalling certain model year 2011-2015 International DuraStar, ProStar, TranStar and WorkStar, 2012-2015 International TerraStar, 2013-2015 International LoneStar and IC Bus HC, and 2014-2015 IC Bus AC vehicles. A vehicle double battery jump start or electrical load dump event could result in an overvoltage condition of a component within the HVAC system linear power module (LPM) which is used to control the blower speed. The overvoltage condition could result in the overheating and failure of the LPM.

Risk: If the LPM overheats and fails, there is an increased risk of a fire.

ENGINE AND ENGINE COOLING:ENGINE

Navistar, Inc. (Navistar) is recalling certain model year 2013-2015 International TranStar vehicles manufactured April 10, 2012, to December 12, 2014. Excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, possibly allowing engine oil to come into contact with hot surfaces.

Risk: If engine oil comes into contact with a hot surface, there is an increased risk of a fire.

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

Navistar, Inc. is recalling certain model year 2013-2014 International ProStar and DuraStar trucks manufactured April 26, 2012, to April 4, 2013, WorkStar trucks manufactured April 27, 2012, to March 29, 2013, LoneStar trucks manufactured May 21, 2012, to April 2, 2013, and TranStar trucks manufactured April 30, 2012, to March 25, 2013. In the affected vehicles, the accelerator pedal position sensor can move and result in a high engine idle.

Risk: A high engine idle may make downshifting the transmission difficult and the engine brake may be disabled. These factors may hinder slowing down the truck when descending a long grade, thereby increasing the risk of a crash.

ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER

Navistar, Inc. (Navistar) is recalling certain model year 2014-2015 International TranStar vehicles manufactured March 5, 2013, to December 12, 2014, equipped with certain Cummins Westport ISL G engines manufactured September 13, 2007, to September 23, 2015. These engines have a turbocharger oil supply line that may contact or interfere with the turbocharger inlet elbow, clean air intake clamp, or the air fuel control tube, and result in an oil leak.

Risk: If the turbocharger oil supply line oil leaks in the proximity of the engine exhaust manifold there would be an increased risk of a fire.

SERVICE BRAKES, AIR:DISC:CALIPER

Navistar, Inc. (Navistar) is recalling certain model year 2013-2015 International DuraStar vehicles manufactured November 2012 through December 2013, International WorkStar vehicles manufactured December 2012 through January 2014, and 2014-2015 International TranStar and International ProStar vehicles manufactured January 2013 through February 2014. The affected vehicles are built with air disc brake feature codes 04WEY, 04WEZ, or 04WZK. These vehicles may have an incorrect number of bolts mounting the brake caliper to the caliper mounting plate and some of the bolts may be improperly torqued.

Risk: If the air disk brake caliper has loose or missing bolts, the air disk brake caliper may come loose from the mounting plate causing the vehicle to pull left or right while braking and lengthening the distance needed to stop, increasing the risk of a crash.