{"nhtsa_id":10137346,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-05-21","date":"2018-02-01","document_id":"PI0235K","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; FUEL SYSTEM, OTHER","mfr_system":null,"summary":"This preliminary informational bulletin provides repair information to correct customer concerns of an exhaust leak or vibration/rattle noise at approximately 900 RPM, fuel smell/white smoke noted intermittently (usually after coming to a stop), and/or an oily substance noted on exhaust downpipe.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10137346-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10137346-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10137346","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"fuel-system","name":"Fuel system","parent":null},{"id":"exhaust-pipe","name":"Exhaust manifold, pipes and muffler","parent":"exhaust-emissions"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EXPRESS","year_from":2011,"year_to":2016,"match":"exact","vehicle_ids":["2011_chevrolet_express","2012_chevrolet_express","2013_chevrolet_express","2014_chevrolet_express","2015_chevrolet_express","2016_chevrolet_express"]},{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2011,"year_to":2011,"match":"base","vehicle_ids":["2011_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2011,"year_to":2015,"match":"base","vehicle_ids":["2011_chevrolet_silverado","2012_chevrolet_silverado","2013_chevrolet_silverado","2014_chevrolet_silverado","2015_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 3500","year_from":2013,"year_to":2013,"match":"base","vehicle_ids":["2013_chevrolet_silverado"]},{"make":"GMC","model":"SAVANA","year_from":2011,"year_to":2016,"match":"exact","vehicle_ids":["2011_gmc_savana","2012_gmc_savana","2013_gmc_savana","2014_gmc_savana","2015_gmc_savana","2016_gmc_savana"]},{"make":"GMC","model":"SIERRA 2500","year_from":2011,"year_to":2015,"match":"base","vehicle_ids":["2011_gmc_sierra","2012_gmc_sierra","2013_gmc_sierra","2014_gmc_sierra","2015_gmc_sierra"]},{"make":"GMC","model":"SIERRA DENALI","year_from":2011,"year_to":2013,"match":"base","vehicle_ids":["2011_gmc_sierra","2012_gmc_sierra","2013_gmc_sierra"]},{"make":"GMC","model":"SIERRA DENALI","year_from":2015,"year_to":2015,"match":"base","vehicle_ids":["2015_gmc_sierra"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}