{"nhtsa_id":10180420,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-10-06","date":"2020-09-24","document_id":"SSM 49203","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Some 2017-2020 F-150 vehicles equipped with a 3.5L EcoBoost engine, 2018-2020 F-150 vehicles equipped with a 2.7L EcoBoost or 5.0L engine, 2019-2020 F-150 vehicles equipped with a 3.0L engine, may exhibit a high pitched squeal or whistle type noise from the engine compartment after the engine is shut off. This condition may be due to the air conditioning (A/C) low side system pressure exceeding the high side pressure resulting in equalization of A/C system pressures through the A/C compressor. This noise is not detrimental to system operation or durability. Submit a Global Concern Report, and let the customer know they can continue to drive the vehicle. Set a follow-up appointment for June 2021 when repairs are expected to become available. Follow up with the customer to confirm the appointment once OASIS is updated.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10180420-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10180420-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10180420","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"F-150","year_from":2017,"year_to":2020,"match":"exact","vehicle_ids":["2017_ford_f-150","2018_ford_f-150","2019_ford_f-150","2020_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":[]}