The 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.
The 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.
The 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.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack LEU | 2010, 2011, 2012, 2013, 2014, 2015 |
| Mack MRU | 2011, 2012, 2013, 2014, 2015 |
| Mack Pinnacle (cxu) | 2014, 2015 |
Components: ENGINE AND ENGINE COOLING:ENGINE
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 LEU | 2010 | 0 | 6 |
| Mack LEU | 2011 | 0 | 8 |
| Mack LEU | 2012 | 0 | 8 |
| Mack LEU | 2013 | 0 | 6 |
| Mack LEU | 2014 | 0 | 6 |
| Mack LEU | 2015 | 0 | 5 |
| Mack MRU | 2011 | 0 | 10 |
| Mack MRU | 2012 | 0 | 9 |
| Mack MRU | 2013 | 0 | 6 |
| Mack MRU | 2014 | 0 | 7 |
| Mack MRU | 2015 | 0 | 3 |
| Mack Pinnacle (cxu) | 2014 | 0 | 18 |
| Mack Pinnacle (cxu) | 2015 | 0 | 15 |
Other engine and engine cooling recalls in 2014
48 of the 770 recall campaigns reported to NHTSA in 2014 concerned the engine and engine cooling; Mack Trucks, Inc. filed 118 campaigns in all.
| 14V771000 3 Dec 2014 | Prevost Cars, Inc. |
| 14V762000 1 Dec 2014 | Mercedes-Benz USA, LLC. |
| 14V764000 1 Dec 2014 | Mercedes-Benz USA, LLC - DBA Sprinter |
| 14V664000 22 Oct 2014 | Spartan Motors, Inc. |
| 14V666000 22 Oct 2014 | Elgin Sweeper Company Inc. |
| 14V574000 19 Sept 2014 | Navistar, Inc. |
| 14V562000 12 Sept 2014 | Mitsubishi Motors North America, Inc. |
| 14V551000 10 Sept 2014 | Mack Trucks, Inc. |
NHTSA recalls (public domain) · all recalls of 2014