{"nhtsa_id":10189762,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-04-03","date":"2021-03-02","document_id":"21N03","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Certain 2017-2020 Model Year F-150 Equipped with a 3.5L GTDI Engine Cam Phaser Replacement In some of the affected vehicles, an undesirable noise may develop from the cam phasers in the 3.5L GTDI engine. This noise might occur as a rattle when starting the engine after the vehicle was turned off for an extended period of time or as a knocking noise when the engine is idling after it is warmed up. A cam phaser that has developed an undesirable noise does not affect the vehicle safety, performance, or emissions","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10189762-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10189762-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10189762","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"F-150","year_from":2017,"year_to":2020,"match":"exact","vehicle_ids":["2017_ford_f-150","2018_ford_f-150","2019_ford_f-150","2020_ford_f-150"]}],"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":[]}