The defect
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.
The risk
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.
The 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.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack Pinnacle (cxu) | 2014 |
Components: ENGINE AND ENGINE COOLING:ENGINE:DIESEL
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Mack Pinnacle (cxu) | 2014 | 0 | 18 |
Other engine and engine cooling recalls in 2013
12 of the 627 recall campaigns reported to NHTSA in 2013 concerned the engine and engine cooling; Mack Trucks, Inc. filed 118 campaigns in all.
| 13V592000 22 Nov 2013 | Volvo Cars of N.A., LLC |
| 13V497000 17 Oct 2013 | Fontaine Modification |
| 13V467000 18 Sept 2013 | Spartan Motors, Inc. |
| 13V380000 23 Aug 2013 | Manning Equipment Inc. LLC |
| 13V341000 5 Aug 2013 | Jaguar Land Rover North America, LLC |
| 13V314000 16 Jul 2013 | Lotus Cars USA, Inc. |
| 13V177000 7 May 2013 | Chrysler Group LLC |
| 13V142000 16 Apr 2013 | Motor Coach Industries |
NHTSA recalls (public domain) · all recalls of 2013