{"nhtsa_id":10042891,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-01-24","date":"2011-12-22","document_id":"SB-3068","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)","mfr_system":null,"summary":"MOTOR COACH INDUSTRIES: ON SOME VEHICLES, THE EGR (EXHAUST GAS RECIRCULATION) HAS A POTENTIAL ISSUE ON CUMMINS ISX ENGINES COOLERS. AN OIL SAMPLE MUST BE TAKEN AND SENT FOR AN ANALYSIS TO CHECK FOR PRESENCE OF COOLANT ELEMENTS THAT COULD POSSIBLE DAMAGE ENGINES. NO MODEL YEARS LISTED. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10042891","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"egr-valve","name":"EGR valve","parent":"exhaust-emissions"}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"ISX","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":[]}