{"nhtsa_id":11024271,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-10-14","date":"2025-10-07","document_id":"SSM 54275","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Some 2021-2023 Explorer vehicles equipped with a 3.0L EcoBoost engine, 2021-2023 Aviator vehicles equipped with a 3.0L EcoBoost or 3.0L plug-in hybrid electric vehicle (PHEV) engine, 2021-2023 Edge/Nautilus vehicles equipped with a 2.7L EcoBoost, 2021-2024 F-150 vehicles equipped with a 2.7L EcoBoost, and 2021-2024 Bronco and 2024 Ranger vehicles equipped with a 2.7L or 3.0L EcoBoost engine may exhibit a ticking/tapping or rattle type noise from the top front cover area of the engine. This noise may occur on initial start-up after a cold soak of 6 hours or more that may last for 2-5 seconds. This may be due to an internal component of the variable cam timing (VCT) unit. Workshop Manual (WSM), Section 303-00 > Diagnosis and Testing > Engine > Pinpoint Test F has been updated to include additional steps along with a video to identify the affected VCT unit that requires replacement.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024271-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024271-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11024271","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"BRONCO","year_from":2021,"year_to":2024,"match":"exact","vehicle_ids":["2021_ford_bronco","2022_ford_bronco","2023_ford_bronco","2024_ford_bronco"]},{"make":"FORD","model":"EDGE","year_from":2021,"year_to":2023,"match":"exact","vehicle_ids":["2021_ford_edge","2022_ford_edge","2023_ford_edge"]},{"make":"FORD","model":"EXPLORER","year_from":2021,"year_to":2023,"match":"exact","vehicle_ids":["2021_ford_explorer","2022_ford_explorer","2023_ford_explorer"]},{"make":"FORD","model":"F-150","year_from":2021,"year_to":2024,"match":"exact","vehicle_ids":["2021_ford_f-150","2022_ford_f-150","2023_ford_f-150","2024_ford_f-150"]},{"make":"FORD","model":"RANGER","year_from":2024,"year_to":2024,"match":"exact","vehicle_ids":["2024_ford_ranger"]},{"make":"LINCOLN","model":"AVIATOR","year_from":2021,"year_to":2023,"match":"exact","vehicle_ids":["2021_lincoln_aviator","2022_lincoln_aviator","2023_lincoln_aviator"]},{"make":"LINCOLN","model":"AVIATOR PHEV","year_from":2021,"year_to":2023,"match":"base","vehicle_ids":["2021_lincoln_aviator","2022_lincoln_aviator","2023_lincoln_aviator"]},{"make":"LINCOLN","model":"MKX","year_from":2007,"year_to":2007,"match":"exact","vehicle_ids":["2007_lincoln_mkx"]},{"make":"LINCOLN","model":"NAUTILUS","year_from":2021,"year_to":2023,"match":"exact","vehicle_ids":["2021_lincoln_nautilus","2022_lincoln_nautilus","2023_lincoln_nautilus"]}],"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":[]}