Engine overheating and heating blowing cold air.?

If your engine is overheating and the heating system is blowing cold air, it may indicate low coolant levels, a malfunctioning thermostat, or a failing water pump. Low coolant can prevent proper circulation, leading to both engine overheating and inadequate heating. Check the coolant level and inspect for leaks; if the coolant is sufficient, the thermostat or water pump might need replacement. Ignoring these issues can lead to more severe engine damage, so it's best to address them promptly.