{"nhtsa_id":627624,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-02-13","date":"2001-10-01","document_id":"0921","mfr_campaign":null,"replaces":null,"component":"FUEL SYSTEM, GASOLINE:CARBURETOR SYSTEM","mfr_system":null,"summary":"FOR SOME VEHICLES BUILT PRIOR TO FEBRUARY 19, 2001, A DEEP SUMP COVER ASSEMBLY KIT IS AVAILABLE FOR SMALL AMOUNTS OF WATER COLLECTED IN THE LOWEST PORTION OF THE AIR CLEANER COVER WHICH MAY NOT DRAIN EFFECTIVELY THROUGH THE VACUATOR VALVE. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/627624","components":[{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FREIGHTLINER","model":"BUSINESS CLASS","year_from":null,"year_to":null,"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":[]}