{"nhtsa_id":10056354,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2014-11-08","date":"2014-09-01","document_id":"SB-080604003-C","mfr_campaign":null,"replaces":null,"component":"ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)","mfr_system":null,"summary":"GMC/CHEVROLET: ENGINES, WITH EGR SYSTEM, HAS LEAKAGE FROM EGR COOLER ENGINE COOLANT INTO THE COMBUSTION CHAMBER. MODEL 2002-15 SILVERADO, SIERRA, 2004-09 KODIAK C4500-C5500, TOPKICK C4500-C5500, 2006-15 EXPRESS, SAVANA. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10056354","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"egr-valve","name":"EGR valve","parent":"exhaust-emissions"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EXPRESS","year_from":2006,"year_to":2014,"match":"exact","vehicle_ids":["2006_chevrolet_express","2007_chevrolet_express","2008_chevrolet_express","2009_chevrolet_express","2010_chevrolet_express","2011_chevrolet_express","2012_chevrolet_express","2013_chevrolet_express","2014_chevrolet_express"]},{"make":"CHEVROLET","model":"KODIAK","year_from":2004,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"SILVERADO","year_from":2002,"year_to":2015,"match":"exact","vehicle_ids":["2002_chevrolet_silverado","2003_chevrolet_silverado","2004_chevrolet_silverado","2005_chevrolet_silverado","2006_chevrolet_silverado","2007_chevrolet_silverado","2008_chevrolet_silverado","2009_chevrolet_silverado","2010_chevrolet_silverado","2011_chevrolet_silverado","2012_chevrolet_silverado","2013_chevrolet_silverado","2014_chevrolet_silverado","2015_chevrolet_silverado"]},{"make":"GMC","model":"SAVANA","year_from":2006,"year_to":2014,"match":"exact","vehicle_ids":["2006_gmc_savana","2007_gmc_savana","2008_gmc_savana","2009_gmc_savana","2010_gmc_savana","2011_gmc_savana","2012_gmc_savana","2013_gmc_savana","2014_gmc_savana"]},{"make":"GMC","model":"SIERRA","year_from":2002,"year_to":2015,"match":"exact","vehicle_ids":["2002_gmc_sierra","2003_gmc_sierra","2004_gmc_sierra","2005_gmc_sierra","2006_gmc_sierra","2007_gmc_sierra","2008_gmc_sierra","2009_gmc_sierra","2010_gmc_sierra","2011_gmc_sierra","2012_gmc_sierra","2013_gmc_sierra","2014_gmc_sierra","2015_gmc_sierra"]},{"make":"GMC","model":"TOPKICK","year_from":2004,"year_to":2009,"match":null,"vehicle_ids":[]}],"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":[]}