1990 Mack RM technical service bulletins

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

• Jun 28, 2022 Service bulletinUS10 Emission Engines
• Jun 22, 2022 Service bulletinAutomated Manual Transmission ( AMT ) I-Shift / mDRIVE
• Jun 21, 2022 Service bulletin(Back Office)
• Jun 21, 2022 Service bulletinProgramming Failure
• May 26, 2022 Service bulletinNOx Sensor Troubleshooting Guide
• May 26, 2022 Service bulletinUse for new vehicles (US21+OBD22
• May 26, 2022 Service bulletinSelective Catalytic Reduction (SCR) Muffler Troubleshooting Guide
• May 26, 2022 Service bulletinDEF Pump Troubleshooting Guide
• May 26, 2022 Service bulletinTemperature Sensor Troubleshooting Guide
• May 25, 2022 Service bulletinMack Chassis
• May 24, 2022 Service bulletinMack Chassis
• May 24, 2022 Service bulletinMack Chassis
• May 20, 2022 Service bulletin(Back Office Only) Mack Chassis
• May 18, 2022 Service bulletinEmcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet
• May 17, 2022 Service bulletinMack
• May 17, 2022 Service bulletinLow Oil Pressure Diagnostic Process For 11 Liter Engines
• May 16, 2022 Service bulletinLow Voltage Disconnect (LVD), Function Description
• May 16, 2022 Service bulletinElectronically Controlled Suspension (ECS) Losing Air Pressure
• May 16, 2022 Service bulletinNo Start Condition After Over The Air Programing
• May 13, 2022 Service bulletinDEF Pump Cycling periodically Hours After Key Off
• May 9, 2022 Service bulletinMack Chassis
• May 9, 2022 Service bulletinPremium Tech Tool ( PTT ) Training Materials And Support Tools