{"nhtsa_id":613677,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-07-26","date":"2000-04-01","document_id":"8561","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS","mfr_system":null,"summary":"SOME VEHICLES MAY EXHIBIT A REPETITIVE KNOCK/ THUMP NOISE FROM THE LEFT FRONT WHICH IS PROPORTIONAL TO THE WHEEL SPEED WHEN BRAKING. **MR","document":null,"url":"https://open.wenmarpro.com/bulletins/613677","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"EXPLORER SPORT","year_from":2001,"year_to":2001,"match":"base","vehicle_ids":["2001_ford_explorer"]},{"make":"FORD","model":"EXPLORER SPORT TRAC","year_from":2001,"year_to":2001,"match":"exact","vehicle_ids":["2001_ford_explorer-sport-trac"]}],"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":[]}