{"nhtsa_id":10021162,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2007-03-14","date":"2006-03-01","document_id":"333","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"LOW COOLANT LEVEL PROBE LEAK. FREIGHTLINER. MODELS BUSINESS CLASS M2, ARGOSY, CENTURY S/T, COLUMBIA, AND FLD VEHICLES. STERLING. MODELS ACTERRA, A-LINE, AND L-LINE. WESTERN STAR. MODELS 4900 VEHICLES. *KB","document":null,"url":"https://open.wenmarpro.com/bulletins/10021162","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"UNKNOWN","model":"UNKNOWN","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":[]}