1. Faulty water pump: The water pump is responsible for circulating coolant throughout the engine. If the water pump is faulty or not working properly, it can cause the engine to overheat. Check the water pump for any signs of damage or leaks.
2. Blocked radiator: The radiator is responsible for dissipating heat from the coolant. If the radiator is blocked or clogged with debris, it can prevent the coolant from circulating properly and cause the engine to overheat. Clean the radiator and make sure there are no obstructions blocking the airflow.
3. Faulty head gasket: A blown head gasket can cause the engine to overheat by allowing coolant to leak into the combustion chambers. Check the head gasket for any signs of damage or leaks.
4. Faulty temperature sensor: A faulty temperature sensor can give incorrect readings to the engine's computer, which can cause the engine to overheat. Check the temperature sensor and make sure it is working properly.
5. Low coolant level: Make sure the coolant level is full and at the proper level as indicated in the owner's manual. If the coolant level is low, it can cause the engine to overheat.
If you have replaced the thermostat, hoses, and caps, and the engine is still overheating, it is recommended to have the vehicle inspected by a qualified mechanic to identify the exact cause of the overheating and have it repaired accordingly.
