CAN A BAD O2 SENSOR CAUSE CAR TO OVERHEAT

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! While a bad O2 sensor can mess with your engine's air-fuel mixture and overall performance, it's not usually the direct cause of overheating. If your MKX is overheating while parked, I'd bet the issue lies with your cooling system. A faulty radiator fan or thermostat, low coolant levels, or even a clogged radiator can turn your engine into a sauna. When parked, there's no airflow, so the fan is crucial for cooling. Check to see if your radiator fan kicks on when the engine's running. If not, that's likely your culprit. Get that sorted, and your MKX should stop feeling like it's stuck in a desert. If you need any further advice or if you'd like any help finding a trusted RepairPal shop in your area, please feel free to call us at 877-913-1554!