{"nhtsa_id":10174386,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-05-05","date":"2020-04-24","document_id":"20B21-A","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"In all of the affected vehicles, there are shallow pressed valve seats in the cylinder heads. This may lead to a rough idle, engine misfires with a reduction in power/torque and a check engine/wrench light illuminated.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10174386-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10174386-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10174386","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"EXPLORER POLICE INTERCEPT","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_ford_explorer"]},{"make":"FORD","model":"F-150","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_ford_f-150"]},{"make":"FORD","model":"TRANSIT","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_ford_transit"]}],"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":[]}