Greetings. I possess a 2015 ST diesel engine with 185 horsepower.
Encountered a problem with coolant loss; replaced the radiator, EGR cooler, thermostat, and installed a complete timing belt kit, utilizing entirely new components.
When driven normally, it operates well; however, under aggressive driving, it overheats and continues to lose coolant, despite a pressure test indicating the head gasket is intact. Has anyone encountered this? I appreciate it.