NHTSA Recall 14V137000: Engine (engine and engine cooling)
Mack Trucks, Inc. reported this safety recall to NHTSA on , covering an estimated 1,934 vehicles. It affects 3 models including the Mack Leu.
| NHTSA campaign | 14V137000 |
|---|---|
| Manufacturer campaign | SC0377 |
| Component | ENGINE AND ENGINE COOLING › ENGINE |
| Report received | March 24, 2014 |
| Owner notification | March 12, 2014 |
| Initiated by | Manufacturer |
Defect
Mack Trucks Inc. (Mack) is recalling certain model year 2014-2015 CXU, 2010-2015 LEU, and 2011-2015 MRU vehicles manufactured with certain Cummins Westport Model ISL G and ISX12 G engines. Condensation in the intake manifold may freeze during cold weather conditions and interfere with the proper operation of the intake manifold pressure sensor.
Safety risk
The improper operation of the sensor could induce elevated exhaust temperatures or flames from the exhaust pipe, increasing the risk of a vehicle fire or burn injury to a person near the exhaust pipe.
Remedy
Cummins and Cummins Westport will notify owners, and authorized Cummins service facilities will upload a new ECM calibration, free of charge. The recall began on March 12, 2014. Customers may contact Mack at 1-336-393-2000 or Cummins Inc. at 1-800-343-7357. Mack's number for this recall is SC0377.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Vehicles covered by recall 14V137000
| Make and model | Model years |
|---|---|
| Mack Leu | 2010, 2011, 2012, 2013, 2014, 2015 |
| Mack Mru | 2011, 2012, 2013, 2014, 2015 |
| Mack Pinnacle (cxu) | 2014, 2015 |
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.