NHTSA Campaign 13V641000

ENGINE AND ENGINE COOLING:ENGINE:DIESEL

Issued by Mack Trucks, Inc. · Reported Dec 20, 2013 · 35 vehicles affected

What's wrong

Mack Trucks, Inc. (Mack) is recalling certain model year 2014 CXU tractor trailers manufactured June 21, 2013, through October 4, 2013 and equipped with an automatic over-speed protection system. In the affected vehicles, the protection system, designed to monitor diesel engine speed and shutdown the engine should it rev excessively, may be wired incorrectly and may not operate as designed.

Consequence

Without a system to control the engine speed, if airborne hydrocarbons (combustible vapors) enter through the air intake, excessive engine speed may result in a catastrophic engine failure and/or engine fire.

Remedy

Mack will notify owners, and dealers will correct the system wiring, free of charge. The recall began on February 20, 2014. Owners may contact Mack Trucks at 1-336-393-2000. Mack's number for this recall is SC0374.

Vehicles affected by this recall

Make Model Year Units
MACK PINNACLE (CXU) 2014 35

Source: NHTSA Campaign 13V641000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.