The issue
Certain trucks were built without inversion valves. The inversion valve provides modulated spring brake application during emergency braking when the "A" portion of air the air brake system has failed. This would result in less than designed brake effectiveness in the case of a half system failure. Correction: Inversion valves will be installed.
Description (français)
Certains camions n’ont pas été dotés de valves d’inversion. La valve d’inversion permet lors des freinages d’urgence une application modulée des freins à ressort quand le circuit «A» du système de freinage à air comprimé fait défaut. Par conséquent, la puissance de freinage sera moindre que prévu en cas de défaillance de la moitié du circuit. Correction : Les valves d’inversion devront être installées sur les véhicules visés.
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada · official text, unchanged
Vehicles covered
| Make and model | Model years |
|---|---|
| Western Star CONVENTIONAL | 1995, 1996 |
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Western Star Conventional | 1995 | 0 | 4 |
| Western Star Conventional | 1996 | 1 | 3 |