{"nhtsa_id":10144176,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-09-04","date":"2018-07-18","document_id":"TSB 033","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT","mfr_system":null,"summary":"A redundant 1? check valve is part of the load system to protect against a failure of the primary check valves located on each of the storage cylinders. A number of these valves have been found to be damaged and non-operational, the damage is due to excessive flow rates.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10144176-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10144176-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10144176","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"QUANTUM FUEL SYSTEMS LLC.","model":"CNG FUEL SYSTEM","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":[]}