Some 2017-2020 F-150 vehicles equipped with a 3.5L EcoBoost engine, 2018-2020 F-150 vehicles equipped with...

Bulletin number

SSM 49203

Component

Engine and engine cooling

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.

Owners of these vehicles have filed 1,478 complaints in the engine category.