{"nhtsa_id":10189753,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-04-03","date":"2021-03-30","document_id":"21B18","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Certain 2021 Model Year Explorer/Aviator All-Wheel-Drive Vehicles Equipped with 3.0L Engines Engine Assembly Replacement All of the affected vehicles, an oversized right-hand exhaust camshaft journal was installed in the engine assembly. This may result in a misfire and low compression condition. The check engine light will be illuminated","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10189753-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10189753-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10189753","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"EXPLORER","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_ford_explorer"]},{"make":"LINCOLN","model":"AVIATOR","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_lincoln_aviator"]}],"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":[]}