{"nhtsa_id":10089183,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-01-19","date":"2014-12-19","document_id":"T1573","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"THIS TEMPORARY REPAIR PRACTICE ADDRESSES FIBER MIGRATION ON DIESEL PARTICULATE FILTERS (DPF) ON CERTAIN ENGINES. LOOSE INSULATION FIBERS HAVE BEEN FOUND TO COVER THE FACE OF THE DPF RESULTING IN FAULT CODE 3322. REPLACEMENT OF THE DIESEL OXIDATION CATALYIST (DOC) IS REQUIRED ALONG WITH CLEANING OF THE DPF AND TEMPERATURE SENSOR.","document":null,"url":"https://open.wenmarpro.com/bulletins/10089183","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"ISX15","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":[]}