{"nhtsa_id":10136578,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-05-14","date":"2018-02-12","document_id":"TSB18-2052","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Some 2017-2018 F-Super Duty vehicles equipped with a 6.7L engine may exhibit a lack of heat on the driver side when the vehicle is operated in ambient temperatures below -20Å?C (4Å?F). This condition may be due to deposits from the engine coolant trapped in the heater core. Follow the Service Procedure steps to correct the condition.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10136578-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10136578-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10136578","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"F SUPER DUTY","year_from":null,"year_to":null,"match":"exact","vehicle_ids":[]}],"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":[]}