{"nhtsa_id":10081100,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-09-29","date":"2016-06-15","document_id":"TB EN-55 REV","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"ADDITIONAL CAUSES FOR HIGH SOOT AND REGENERATION FREQUENCY","document":null,"url":"https://open.wenmarpro.com/bulletins/10081100","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"egr-valve","name":"EGR valve","parent":"exhaust-emissions"}],"codes":[],"topics":[],"vehicles":[{"make":"UD","model":"UD1800","year_from":null,"year_to":null,"match":"exact","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":[]}