2016-freightliner-cascadia-automatic-transmission-problems -
The DT12 is known for several recurring issues that can cause gear engagement failure or erratic shifting:
: A neglected air dryer can allow moisture or oil into the transmission’s pneumatic system. This often damages the clutch actuator and internal brake , leading to clutch burn or the inability to disengage the clutch. 2016-freightliner-cascadia-automatic-transmission-problems
: External air leaks along the frame or at the shift actuator can cause the truck to drop into neutral unexpectedly during gear changes (e.g., shifting from 4th to 5th). The DT12 is known for several recurring issues