{"nhtsa_id":637755,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-12-04","date":"2002-05-01","document_id":"15887","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"SOME VEHICLES MAY EXHIBIT A NO 1-2 UPSHIFT, NO 2-3 UPSHIFT, A NO ENGINE BRAKING CONDITION IN MANUAL 1 OR DIAGNOSTIC TROUBLE CODE P0732 (GEAR 2 INCORRECT RATIO) OR P0733 (GEAR 3 INCORRECT RATIO). *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/637755","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P0732","P0733"],"topics":[],"vehicles":[{"make":"FORD","model":"AEROSTAR","year_from":1996,"year_to":1997,"match":"exact","vehicle_ids":["1996_ford_aerostar","1997_ford_aerostar"]},{"make":"FORD","model":"EXPLORER","year_from":1995,"year_to":2001,"match":"exact","vehicle_ids":["1995_ford_explorer","1996_ford_explorer","1997_ford_explorer","1998_ford_explorer","1999_ford_explorer","2000_ford_explorer","2001_ford_explorer"]},{"make":"FORD","model":"EXPLORER SPORT","year_from":1999,"year_to":2002,"match":"base","vehicle_ids":["1999_ford_explorer","2000_ford_explorer","2001_ford_explorer","2002_ford_explorer"]},{"make":"FORD","model":"EXPLORER SPORT TRAC","year_from":2001,"year_to":2002,"match":"exact","vehicle_ids":["2001_ford_explorer-sport-trac","2002_ford_explorer-sport-trac"]},{"make":"FORD","model":"RANGER","year_from":1995,"year_to":2002,"match":"exact","vehicle_ids":["1995_ford_ranger","1996_ford_ranger","1997_ford_ranger","1998_ford_ranger","1999_ford_ranger","2000_ford_ranger","2001_ford_ranger","2002_ford_ranger"]},{"make":"MERCURY","model":"MOUNTAINEER","year_from":1997,"year_to":2001,"match":"exact","vehicle_ids":["1997_mercury_mountaineer","1998_mercury_mountaineer","1999_mercury_mountaineer","2000_mercury_mountaineer","2001_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":[]}