Some 2023-2024 Escape vehicles built on or before 11-Jan-2024 equipped with 1.5L engines may exhibit an Engine Coolant Over-Temperature Warning message displayed in the IPC and an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P1285 and/or P1299 stored in the powertrain control module (PCM) during hard acceleration or under high load conditions. This may be due to machining chips trapped in the cylinder head causing a potential blockage in the coolant passage near the cylinder head temperature (CHT2) port. To diagnose this condition, start the vehicle and idle for 15 minutes. Perform a road test at a temperature above -20°C (-4°F) and apply wide-open throttle (WOT) hard accelerations in rapid succession. If the concern can not be replicated, drain and refill the coolant system. If the concern can be replicated, drain the coolant system. Disconnect the charge air cooler inlet and outlet hose, overflow hose, upper and lower hose of the radiator and position these components aside. Disconnect the inlet and outlet coolant hoses of the heater core and position these compone
