{"nhtsa_id":610913,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-05-18","date":"1999-11-01","document_id":"13527","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE","mfr_system":null,"summary":"SOME VEHICLES EQUIPPED WITH 4.0L SOHC ENGINES MAY EXHIBIT AN OVERHEAT CONDITION THAT MAY BE ATTRIBUTED TO THE THERMOSTAT. ENGINEERING IS CURRENTLY INVESTIGATING THIS ISSUE AND IS LOOKING FOR THERMOSTATS AND COOLANTS SAMPLES FROM THESE VEHICLES. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/610913","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"EXPLORER","year_from":1997,"year_to":1999,"match":"exact","vehicle_ids":["1997_ford_explorer","1998_ford_explorer","1999_ford_explorer"]},{"make":"MERCURY","model":"MOUNTAINEER","year_from":1997,"year_to":1999,"match":"exact","vehicle_ids":["1997_mercury_mountaineer","1998_mercury_mountaineer","1999_mercury_mountaineer"]}],"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":[]}