{"nhtsa_id":637785,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-12-06","date":"2002-05-01","document_id":"15900","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:APPLIANCE:AIR CONDITIONER","mfr_system":null,"summary":"SOME VEHICLES MAY EXHIBIT A WHISTLING OR BUZZING NOISE ORIGINATING FROM THE CLIMATE CONTROL SYSTEM WHEN THE BLOWER MOTOR IS RUNNING AT 2 OR 3 BAR SPEED. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/637785","components":[{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"THUNDERBIRD","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_ford_thunderbird"]},{"make":"LINCOLN","model":"LS","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_lincoln_ls"]}],"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":[]}