Transport CanadaHigh Risk
At a glance
What can fail
In cold weather, the air brake dryer cannot remove all moisture from high-volume airflow. Frozen moisture can block air lines downstream, building pressure in the dryer and potentially causing the cartridge to separate from its base.
What the fix does
Pressure relief valves will be installed on the dryer inlet ports to prevent excessive pressure buildup.
1,012 vehicles affected
Transport Canada #1996047 — full official notice →Summarized — see the official notice for exact wording, dates, and contacts.