{"nhtsa_id":10232586,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-03-07","date":"2023-02-10","document_id":"23B05","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Certain 2023 Model Year Explorer, Bronco, Ranger Vehicles Equipped with 2.3L Gas Engine In all of the affected vehicles, a damaged fixture used during the engine block machining process may have allowed the dimension of one of the head bolt bore holes to exceed specification, reducing head bolt thread engagement.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10232586-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10232586-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10232586","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"BRONCO","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_ford_bronco"]},{"make":"FORD","model":"EXPLORER","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_ford_explorer"]},{"make":"FORD","model":"RANGER","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_ford_ranger"]}],"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":[]}