The radiator is leaking.
Hi there. Most radiators have an aluminum core and plastic tanks. The tank and core are sealed by a gasket. It is common for this gasket to leak over time. Replacing the radiator is the usual repair. Checking and replacing the upper and lower radiator hoses is also advised if they have not been replaced in the last 4 yrs. Consider giving YourMechanic a call to help you with this repair.
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