Mack CX, CH: Steering

Affects Mack CX, CH · 2000–2001 — about 71 vehicles.

The hazard

Certain Class 8 heavy-duty trucks equipped with R.H. Sheppard M90 steering gears. An incorrect hose was used for the high-pressure line between the power steering pump and the steering gear. The hose is rated at 2000 PSI, while it should be rated at 3000 PSI. This hose could develop a leak or burst while in service. Should the line burst, steering control would still be maintained, but a loss of power assist will be experienced. Correction: Dealers will replace the steering hose.

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