{"nhtsa_id":10160864,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-06-05","date":"2019-05-15","document_id":"TSB19-2122","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; EQUIPMENT:APPLIANCE:AIR CONDITIONER","mfr_system":null,"summary":"Some 2015-2019 F-150 vehicles equipped with a 3.3L, 3.5L Duratec, 3.5L EcoBoost and 5.0L engine without a block heater built on or before 1-Jan-2019 may exhibit a lack of heat concern from the heating ventilation and air conditioning (HVAC) system when operating the vehicle in temperatures consistently below -20Å’C (4Å’F). 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. Follow the Service Procedure steps to correct the condition.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10160864-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10160864-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10160864","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"F-150","year_from":2015,"year_to":2019,"match":"exact","vehicle_ids":["2015_ford_f-150","2016_ford_f-150","2017_ford_f-150","2018_ford_f-150","2019_ford_f-150"]}],"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":[]}