{"nhtsa_id":54075,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1998-03-30","date":"1997-09-02","document_id":"97090297189","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:COOLING SYSTEM","mfr_system":null,"summary":"EXPERIENCING A \"THUMPING\" NOISE OR TEMPEATURE GAUGE FLUCTATION WITH SOME VEHICLES. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/54075","components":[{"id":"engine","name":"Engine","parent":null},{"id":"cooling-system","name":"Cooling system","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"AEROSTAR","year_from":1994,"year_to":1997,"match":"exact","vehicle_ids":["1994_ford_aerostar","1995_ford_aerostar","1996_ford_aerostar","1997_ford_aerostar"]},{"make":"FORD","model":"EXPLORER","year_from":1994,"year_to":1997,"match":"exact","vehicle_ids":["1994_ford_explorer","1995_ford_explorer","1996_ford_explorer","1997_ford_explorer"]},{"make":"FORD","model":"RANGER","year_from":1994,"year_to":1997,"match":"exact","vehicle_ids":["1994_ford_ranger","1995_ford_ranger","1996_ford_ranger","1997_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":[]}