CarRecallWatch- Component
- ENGINE AND ENGINE COOLING:ENGINE
- Problem
- Daimler Trucks North America LLC (DTNA) is recalling certain model year 2008-2015 Thomas Built Buses Saf-T-Liner HDX school buses manufactured May 25, 2008, to December 18, 2014, and equipped with certain Cummins Westport ISL G engines. Excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, possibly allowing engine oil to come into contact with hot surfaces.
- Risk
- If engine oil comes into contact with a hot surface, there is an increased risk of a fire.
- Remedy
- Cummins will notify owners on behalf of DTNA, and dealers secure the ends of the 90-degree elbow. In addition, the electronic control module (ECM) will be reprogrammed with software that can adjust the engine output under misfire conditions to limit crankcase pressures. These repairs will be performed free of charge. The recall began on June 12, 2015. Owners may contact DTNA customer service at 1-800-745-8000, or Cummins customer service at 1-800-343-7357. DTNA's number for this recall is FL-681.
- 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.
What this recall means for you
Certain Saf-T-Liner HDX school buses built from May 2008 to December 2014 with Cummins Westport ISL G engines may have a problem with the engine's crankcase vent tube. Excessive crankcase pressure can cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, which may allow engine oil to contact hot surfaces.
If engine oil touches a hot surface, the risk of a fire increases. Owners should take this recall seriously, especially for buses that carry children.
The repair is free at an authorized dealer. Dealers will secure the ends of the 90-degree elbow and reprogram the engine control module with software that adjusts engine output under misfire conditions to limit crankcase pressure. Cummins will notify owners on behalf of Daimler Trucks North America (recall number FL-681). You can also call DTNA customer service at 1-800-745-8000 or Cummins at 1-800-343-7357, and check your VIN for open recalls.
Check whether this recall is open on your vehicle
Official recall notice
Affected vehicles
| Thomas Built Buses Saf-T-Liner HDX | 20082009201020112012201320142015 |
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