{"nhtsa_id":10140451,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-06-11","date":"2018-05-31","document_id":"SB 3112","mfr_campaign":null,"replaces":null,"component":"FUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS; FUEL SYSTEM, OTHER","mfr_system":null,"summary":"This Service Bulletin informs affected owners of D series coaches with CNG fuel systems to remove the orifice located in the fuel regulator coolant supply hose. This will allow a greater volume of warm water to reach the fuel pressure regulator, which will reduce the chance of ice buildup on the fuel supply hose.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10140451-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10140451-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10140451","components":[{"id":"fuel-system","name":"Fuel system","parent":null},{"id":"fuel-line","name":"Fuel hoses and lines","parent":"fuel-system"}],"codes":[],"topics":[],"vehicles":[{"make":"MCI","model":"D SERIES","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"MCI","model":"MCI","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":[]}