{"nhtsa_id":603820,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-03-08","date":"1998-09-01","document_id":"98047","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)","mfr_system":null,"summary":"EXPERIENCING EXHAUST GAS RECIRCULATION VALVE FAILURES. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/603820","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":"CAMARO","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_chevrolet_camaro"]},{"make":"PONTIAC","model":"FIREBIRD","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_pontiac_firebird"]}],"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":[]}