NHTSA campaign 14V215000
Hazard
Blue Bird Body Company (Blue Bird) is recalling certain model year 2009-2015 All American rear engine non-school buses manufactured from June 23, 2010, through May 24, 2012, and equipped with certain Cummins Westport Model ISL G compressed natural gas engines. Condensation in the intake manifold may freeze during cold weather conditions and interfere with the proper operation of the intake manifold pressure sensor.
Consequence
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 has notified owners, and authorized Cummins service facilities will upload a new ECM calibration, free of charge. The recall began on April 12, 2014. Customers may contact Blue Bird at 1-478-822-2242 or Cummins Inc. at 1-800-343-7357. Blue Bird's number for this recall is R14XB.
The text above is quoted verbatim from the NHTSA record. Confirm the affected units and the remedy with the manufacturer or NHTSA. Recall data may be incomplete, delayed, or superseded.