{"nhtsa_id":10139878,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-06-11","date":"2014-12-03","document_id":"11-004-14","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","mfr_system":null,"summary":"Chirp Type Noise Emitted From Exhaust This bulletin involves replacement of the muffler to correct a chirp type noise that is emitted from the exhaust when the engine enters MDS mode. Vehicle operators may experience the following condition: Chirp Type Noise Emitted From Exhaust when entering MDS mode","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10139878-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10139878-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10139878","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"RAM","model":"2500","year_from":2014,"year_to":2014,"match":"exact","vehicle_ids":["2014_ram_2500"]},{"make":"RAM","model":"3500","year_from":2014,"year_to":2014,"match":"exact","vehicle_ids":["2014_ram_3500"]},{"make":"RAM","model":"5500","year_from":2014,"year_to":2014,"match":"exact","vehicle_ids":["2014_ram_5500"]}],"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":[]}