{"nhtsa_id":10078942,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-08-26","date":"2016-04-23","document_id":"REHS9179-00","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"SPN 731 FMI 16/18 KNOCK DETECTED FOR CAT CT11 AND CT13 ENGINES - THE FOLLOWING PROCEDURE IS FOR TROUBLESHOOTING THE SPN 731 FMI 16/18 KNOCK DETECTED DIAGNOSTIC CODE.","document":null,"url":"https://open.wenmarpro.com/bulletins/10078942","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CATERPILLAR","model":"CT660","year_from":2012,"year_to":2017,"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":[]}