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What are the symptoms of internal engine damage due to overheating?

1. Knocking or pinging sounds: These sounds are caused by the piston slap, which occurs when the piston is loose in the cylinder. This can be caused by a number of factors, including overheating.

2. Loss of power: This can be caused by a number of factors, including overheating. When the engine overheats, the piston rings can expand and lose their seal, which allows compression to escape. This can also cause the valves to warp, which can further reduce compression.

3. Blue or white smoke from the exhaust: This can be caused by a number of factors, including overheating. When the engine overheats, the oil can break down and start to burn. This can also cause the piston rings to fail, which can allow oil to enter the combustion chamber.

4. Coolant leaks: This can be caused by a number of factors, including overheating. When the engine overheats, the pressure in the cooling system can increase and cause the hoses or gaskets to fail. This can lead to a loss of coolant, which can further damage the engine.

5. Engine seizure: This is the most serious symptom of internal engine damage due to overheating. When the engine seizes, the pistons can become stuck in the cylinders and the engine will no longer be able to run. This can cause extensive damage to the engine and may even require the engine to be replaced.