{"nhtsa_id":633694,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-09-23","date":"2002-06-18","document_id":"NTB02067","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"SUBJECT REGARDING QR25DE (4CYL) ENGINE HEAD GASKET HANDLING PRECAUTIONS. *JG","document":null,"url":"https://open.wenmarpro.com/bulletins/633694","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"NISSAN","model":"ALTIMA","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_nissan_altima"]},{"make":"NISSAN","model":"SENTRA","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_nissan_sentra"]}],"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":[]}