Air system blockage in the air dryer occurs degrading the moisture removing capabilities of the dryer when the vehicle IS operated in a cold environment and moisture accumulates and freezes in the air dryer or in the line between the dryer and the air system reservoir. The air dryer can become overpressurized causing the air dryer cartridge to separate from…
Risk and remedy
Risk
If the air dryer separates from the base, the cartridge can separate sufficiently enough to cause personal injury or property damage.
Remedy
Dealers will equip air systems with a pressure relief valve to be located between the compressor and the air dryer. This pressure relief valve IS intended to vent if excessive pressure develops in the air dryer.
Fuel injection system reconfiguration to comply with engine emission standards cause higher engine vibration levels which lead to early wear and complete failure of the secondary throttle return mechanism.
Risk and remedy
Risk
In the event the primary throttle return fails, failure of the secondary throttle return system would not provide protection against loss of throttle control.
Remedy
A new production secondary throttle return system configuration will be installed.
The carrier yoke bolts were manufactured with worn rolling thread dies, causing stress concentrations which caused cracks during the quenching process.
Risk and remedy
Risk
This condition can cause bolt failure and allow thedriveline to separate from the carrier assembly.
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
10215315Programming Failure - Chassis With Cummins Engine And An Allison Transmission
10215312(Back Office) - Cruise Control Inoperative After Updating Software VECU5 Without ESP Package (UESP).
10215289Automated Manual Transmission ( AMT ) I-Shift / mDRIVE - Ribbon Harness Replacement - Speed Sensor Bolts, Possible Fault Codes P1058 - 21 Or MID 130 PID 161 FMI 1
10213633USE FOR NEW VEHICLES (US21+OBD22 Emissions) - Intermittent Diagnostic Trouble Codes U02A3, U029D, U029E
10213632NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions
10213630Mack Chassis - Vehicles Equipped With An Automated Manual Transmission Model F ( AMT-F, mDrive ), Premium Tech Tool ( PTT ) Gearbox Calibration Failure; Gearbox Calibration Operation Stops And Fails At 33% When Run With Transmission Removed
10213625Mack - PTO Pump Speed Calculator
10213612(Back Office Only) Mack Chassis - Cruise Control Inoperative After Disabling The Electronic Stability Program (ESP)
10213609Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After DEF Pump Failure Or System Contamination
10213608Mack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information
10213605Mack Chassis - Diagnostic Trouble Codes ( DTC's ) - P020113, P020213, P020313, P020413, P020513, P020613, Cylinders 1 Through 6 Injector A Open Circuit
Every Mack MR model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.