Coolant leak at the high voltage (HV) battery coolant cooler outlet hose

Bulletin number

TSB 23-2187

Component

Hybrid propulsion system

Summary

Some 2022 Explorer vehicles equipped with a 3.3L full hybrid electric vehicle (FHEV) engine and built on 12-Jul-2022 and through 31-Oct-2022 may exhibit a coolant leak at the high voltage (HV) battery coolant cooler outlet hose. This may be due to the HV battery coolant cooler outlet hose contacting the bottom pulley of the accessory drive belt tensioner. To correct the condition, follow the Service Procedure to replace the damaged hose and install a cable tie.

Owners of these vehicles have filed 38 complaints in the fuel system category.