Western Star · Canada · High
Western Star Conventional: Engine
Affects Western Star Conventional · 1995 — about 170 vehicles.
The hazard
On certain trucks, the throttle springs were manufactured such that the hooks at each end may have a tighter than required diameter. If the diameter of a hook is too tight it may bind on the throttle spring anchor nuts. This binding may lead to spring fatigue and eventual spring failure. If both springs fail, the engine may not return to idle upon release of the accelerator. This could result in loss of vehicle control and a crash. Correction: Throttle return springs will be replaced with redesigned springs.
What to do
Contact your dealer; the remedy details were not included in the filing.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational