{"nhtsa_id":637787,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-12-06","date":"2002-05-01","document_id":"15901","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE","mfr_system":null,"summary":"THIS BULLETIN STATES THAT SOME 4.6L FQR ENGINE ASSEMBLIES MAY HAVE A SMALLER OR LARGER KNOCK SENSOR THREADED HOLD THAN THE ONE IN THE ORIGINAL ENGINE ASSEMBLY. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/637787","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"E SERIES","year_from":1997,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"FORD","model":"EXPEDITION","year_from":1997,"year_to":1998,"match":"exact","vehicle_ids":["1997_ford_expedition","1998_ford_expedition"]},{"make":"FORD","model":"F SERIES","year_from":1997,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"FORD","model":"MUSTANG COBRA","year_from":1996,"year_to":1998,"match":"base","vehicle_ids":["1996_ford_mustang","1997_ford_mustang","1998_ford_mustang"]}],"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":[]}