{"nhtsa_id":10172935,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-04-02","date":"2020-03-02","document_id":"TSB-20-2053","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Some 2015-2019 Transit vehicles equipped with a 3.5L or 3.7L engine may exhibit a lack of heat or uneven heat from side to side. This condition may be due to deposits from the engine coolant becoming trapped in the heater core. To correct the condition, flush the cooling system and replace the heater core.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10172935-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10172935-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10172935","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"TRANSIT","year_from":2015,"year_to":2019,"match":"exact","vehicle_ids":["2015_ford_transit","2016_ford_transit","2017_ford_transit","2018_ford_transit","2019_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":[]}