{"nhtsa_id":10056589,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2015-01-10","date":"2014-07-01","document_id":"SIB-SPN-84","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:DIESEL","mfr_system":null,"summary":"DETROIT: THE VEHICLE SPEED SIGNAL DROPS OUT AND RPM GREATER THAN 1200, WITH TORQUE DEMAND ON. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10056589","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"DETROIT","model":"DETROIT","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":[]}