Also recalled in CanadaThe official notice
Defect
General Motors LLC (GM) and IMPCO Automotive Division of IMPCO Technologies, Inc. (IMPCO) are recalling certain model year 2011-2013 Chevrolet Express and GMC Savana Cargo vans that have a compressed natural gas (CNG) fuel system installed as original equipment by IMPCO. The fuel systems, manufactured February 14, 2011, through February 20, 2013, have a fuel shut-off solenoid connector to the CNG tank that may corrode and form a short.
Safety Risk
A short at the connector may cause overheating, resulting in an increased risk of fire.
Remedy
GM will notify owners and GM dealers/fleets will perform the remedy which will include replacing the solenoid assemblies and fuel pump fuses and adjusting the wiring routing. The recall began on August 5, 2013. GM's number for this recall is 13139. Impco's number for this recall is FA13GM001. Owner's may contact GM Fleet Action Center at 1-800-353-3867.