{"nhtsa_id":601911,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1998-08-28","date":"1998-06-01","document_id":"98636604B","mfr_campaign":null,"replaces":"63-66-04A","component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","mfr_system":null,"summary":"COMMENTS THAT A METALLIC NOISE ON COLD EXHAUST SYSTEMS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/601911","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"CAVALIER","year_from":1995,"year_to":1998,"match":"exact","vehicle_ids":["1995_chevrolet_cavalier","1996_chevrolet_cavalier","1997_chevrolet_cavalier","1998_chevrolet_cavalier"]},{"make":"PONTIAC","model":"SUNFIRE","year_from":1995,"year_to":1995,"match":null,"vehicle_ids":[]},{"make":"PONTIAC","model":"SUNFIRE","year_from":1996,"year_to":1998,"match":"exact","vehicle_ids":["1996_pontiac_sunfire","1997_pontiac_sunfire","1998_pontiac_sunfire"]}],"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":[]}