{"nhtsa_id":51755,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1997-07-17","date":"1997-02-19","document_id":"BC3156970219","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE","mfr_system":null,"summary":"EXPLORERS EQUIPPED WITH THE 4.0L SOHC ENGINE MAY EXHIBIT A HISS/WHISTLE AT TIP IN. *TW","document":null,"url":"https://open.wenmarpro.com/bulletins/51755","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"EXPLORER","year_from":1997,"year_to":1997,"match":"exact","vehicle_ids":["1997_ford_explorer"]}],"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":[]}