{"nhtsa_id":603682,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-03-01","date":"1998-11-01","document_id":"982119","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION","mfr_system":null,"summary":"SOME VEHICLES MAY EXHIBIT ERRATIC 4-3 SHIFT HUNTING WHILE ASCENDING A GRADE AND/OR NO 3-4 UPSHIFT AFTER CRESTING A GRADE. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/603682","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"F SUPER DUTY","year_from":1996,"year_to":1997,"match":"exact","vehicle_ids":["1996_ford_f-super-duty","1997_ford_f-super-duty"]},{"make":"FORD","model":"F SUPER DUTY","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]}],"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":[]}