VEHICLE DESCRIPTION: CLASS 8 HEAVY DUTY TRUCKS. THE AIR SUSPENSION CONTROL VALVE SUPPLY LINE WAS NOT PLUMBED THROUGH AN AIR PRESSURE PROTECTION VALVE. IN THE EVENT OF A FAILURE, THERE WOULD BE LOSS OF AIR PRESSURE IN THE 'B' SYSTEM AIR RESERVOIR THAT SUPPLIES AIR PRESSURE FOR THE FRONT STEER AXLE BRAKES.
Consequence & remedy
Consequence: THIS CONDITION WOULD RESULT IN INCREASED STOPPING DISTANCES.
Remedy: DEALERS WILL INSTALL THE NECESSARY AIR PRESSURE PROTECTION VALVE.
UNDERCOATING APPLIED TO THE INSIDE OF THE CAB SHELL SQUEEZED OUT DURING ASSEMBLY ONTO THE BRAKE PEDAL PLUNGER.
Consequence & remedy
Consequence: UNDERCOATING ON THE PLUNGER MAY CAUSE THE PLUNGER TO STICK RESULTING IN INCREASED BRAKE PEDAL EFFORT AND/OR SLOW RELEASE OF THE BRAKES INCREASING THE POTENTIAL FOR A VEHICLE ACCIDENT.
Remedy: DEALERS WILL CLEAN THE UNDERCOATING FROM THE BRAKE PEDAL PLUNGER ASSEMBLY, LUBRICATE AND REINSTALL THE BRAKE PEDAL PLUNGER ASSEMBLY.