{"nhtsa_id":10039148,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2011-07-13","date":"2010-08-01","document_id":"AS-21441","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"FORD: THE ENGINE MAY BE ROUGH ON IDLE DUE TO THE HIGH PERFORMANCE CHARACTERISTICS. 2011 MUSTANGS. *RM","document":null,"url":"https://open.wenmarpro.com/bulletins/10039148","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"MUSTANG","year_from":2011,"year_to":2011,"match":"exact","vehicle_ids":["2011_ford_mustang"]}],"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":[]}