{"nhtsa_id":10026108,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2008-09-30","date":"2008-07-01","document_id":"PIP-4380","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:DIESEL","mfr_system":null,"summary":"GMC: EGR LOW FLOW DTC P0401. VEHICLES THAT ARE EQUIPPED WITH THE 6.6L DIESEL ENGINE RPO CODE LM. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10026108","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P0401"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EXPRESS","year_from":2007,"year_to":2008,"match":"exact","vehicle_ids":["2007_chevrolet_express","2008_chevrolet_express"]},{"make":"CHEVROLET","model":"KODIAK","year_from":2007,"year_to":2008,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"SILVERADO","year_from":2007,"year_to":2008,"match":"exact","vehicle_ids":["2007_chevrolet_silverado","2008_chevrolet_silverado"]},{"make":"GMC","model":"SAVANA","year_from":2007,"year_to":2008,"match":"exact","vehicle_ids":["2007_gmc_savana","2008_gmc_savana"]},{"make":"GMC","model":"SIERRA","year_from":2007,"year_to":2008,"match":"exact","vehicle_ids":["2007_gmc_sierra","2008_gmc_sierra"]},{"make":"GMC","model":"TOPKICK","year_from":2007,"year_to":2008,"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":[]}