The problem
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 over pressurized causing the air dryer cartridge to separate from the mounting base.
The risk
If the air dryer separates from the base, the cartridge can separate sufficiently enough to cause personal injury or property damage.
The fix
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.
Contacts
System: brakes; air dryer. Vehicle description: heavy duty trucks equipped with rockwell wabco system saver "1000" or system saver "twin" air dryers. Note: if your vehicle is presented to an authorized dealer on an agreed upon service date and the remedy is not provided free of charge within a reasonable time, contact western star at 1-604-860-3319. Also contact the national highway traffic safety administration's auto safety hotline at 1-800-424-9393.
What to do
- Check your VIN. Enter it at nhtsa.gov/recalls - it shows whether this recall applies to your vehicle and whether the repair has been done.
- Call a dealer. Any authorized Western Star dealer will do the repair free, whether or not you bought the vehicle there. Quote campaign 95E003002.
- Ask about parts and a loaner. If parts aren't available yet, ask what to do in the meantime.
- Keep your paperwork. If you paid for this repair before the recall, you may be able to get reimbursed - here's how.