{"nhtsa_id":10006918,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2004-05-19","date":"2004-04-01","document_id":"04029","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","mfr_system":null,"summary":"THE EXHAUST VALVE STEM MAY BECOME DEFORMED WHICH COULD LEAD TO VALVE TRAIN CLATTER NOISE. CUSTOMER SATISFACTION PROGRAM. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10006918","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"W3500","year_from":1999,"year_to":2001,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"W4500","year_from":1999,"year_to":2001,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"W5500","year_from":1999,"year_to":2001,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"W3500","year_from":1999,"year_to":2001,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"W4500","year_from":1999,"year_to":2001,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"W5500","year_from":1999,"year_to":2001,"match":null,"vehicle_ids":[]},{"make":"ISUZU","model":"NPR","year_from":1999,"year_to":1999,"match":"exact","vehicle_ids":["1999_isuzu_npr"]},{"make":"ISUZU","model":"NPR","year_from":2000,"year_to":2001,"match":null,"vehicle_ids":[]},{"make":"ISUZU","model":"NQR","year_from":1999,"year_to":2001,"match":"exact","vehicle_ids":["1999_isuzu_nqr","2000_isuzu_nqr","2001_isuzu_nqr"]}],"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":[]}