{"nhtsa_id":608921,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-11-09","date":"1999-08-01","document_id":"6896","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE","mfr_system":null,"summary":"SOME VEHICLES MAY EXHIBIT AN ENGINE NOISE WHICH MAY BE PERCEIVED BY THE CUSTOMER AS A PISTON / CONNECTING ROD BEARING KNOCK. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/608921","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"AEROSTAR","year_from":1990,"year_to":1997,"match":"exact","vehicle_ids":["1990_ford_aerostar","1991_ford_aerostar","1992_ford_aerostar","1993_ford_aerostar","1994_ford_aerostar","1995_ford_aerostar","1996_ford_aerostar","1997_ford_aerostar"]},{"make":"FORD","model":"EXPLORER","year_from":1990,"year_to":1990,"match":null,"vehicle_ids":[]},{"make":"FORD","model":"EXPLORER","year_from":1991,"year_to":2000,"match":"exact","vehicle_ids":["1991_ford_explorer","1992_ford_explorer","1993_ford_explorer","1994_ford_explorer","1995_ford_explorer","1996_ford_explorer","1997_ford_explorer","1998_ford_explorer","1999_ford_explorer","2000_ford_explorer"]},{"make":"FORD","model":"RANGER","year_from":1990,"year_to":2000,"match":"exact","vehicle_ids":["1990_ford_ranger","1991_ford_ranger","1992_ford_ranger","1993_ford_ranger","1994_ford_ranger","1995_ford_ranger","1996_ford_ranger","1997_ford_ranger","1998_ford_ranger","1999_ford_ranger","2000_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":[]}