{"nhtsa_id":619317,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-05-23","date":"2001-04-01","document_id":"14823","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE","mfr_system":null,"summary":"SOME VEHICLES EQUIPPED WITH THE 4.0 SOHC ENGINE MAY EXHIBIT A PRIMARY CHAIN RATTLE NOISE BETWEEN 2000 - 3000 RPM (SOMETIMES DESCRIBED AS A SPARK KNOCK-TYPE NOISE). *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/619317","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"EXPLORER","year_from":2001,"year_to":2001,"match":"exact","vehicle_ids":["2001_ford_explorer"]},{"make":"FORD","model":"RANGER","year_from":2001,"year_to":2001,"match":"exact","vehicle_ids":["2001_ford_ranger"]}],"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":[]}