TSB Document:

• SB-10052217-1274.pdf

Affected Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

Summary

GMC/CHEVROLET: SEE DOCUMENT SEARCH BUTTON FOR OWNER. SOME VEHICLES, WITH COMPRESSED NATURAL GAS (CNG), ARE EXPERIENCING A HIGHER TAILPIPE EMISSION OF EXHAUST DUE TO AN INCORRECT CALIBRATION OF EMC, ALLOWED BY EMISSION STANDARDS. MODELS 2013 EXPRESS, SAVANA. *PE

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