{"nhtsa_id":634718,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-10-07","date":"2002-05-01","document_id":"020601021","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE","mfr_system":null,"summary":"SOME OWNERS MAY COMMENT ON A WHISTLE NOISE COMING FROM EITHER THE INTAKE MANIFOLD OR THE THROTTLE BODY. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/634718","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"CORVETTE","year_from":2001,"year_to":2001,"match":"exact","vehicle_ids":["2001_chevrolet_corvette"]}],"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":[]}