Rick's Free Auto Repair Advice

Posts Tagged: heater core leak

What causes heater core leaks

What causes heater core leaks? Most common causes of heater core leaks Neglecting coolant changes is the #1 cause of heater core leaks Heater cores are designed to last the life of the vehicle. That’s why car makers install them deep into the dash of your car—they don’t expect them to ever need service. Not replacing engine coolant at the recommended service intervals is No. 1 cause of heater core leaks, water pump and radiator failure. Engine coolant does more than prevent your engine from freezing and cracking. Coolant contains … Read More


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