Poor air conditioning (A/C) performance, loss of airflow and/or engine cooling fans running continuously...

Bulletin number

TSB 21-2250

Component

Engine and engine cooling: cooling system: fan

Summary

Some 2015-2020 F-150, 2017-2020 Super Duty and 2018-2020 Expedition/Navigator vehicles may exhibit poor air conditioning (A/C) performance, loss of airflow and/or engine cooling fans running continuously from high A/C pressures. This concern may be from the evaporator freezing up due to the evaporator temperature sensor being biased. To correct the condition, follow the Service Procedure steps to replace the evaporator temperature sensor.

Owners of these vehicles have filed 2,631 complaints in the engine category.