What should I do if my heater core is clogged?
What should I do if my heater core is clogged? In that case, you might have a clogged heater core. In that scenario, you can try flushing it out. Sometimes you can force compressed air and cleaner through a heater core to clear the blockage. I would suggest you try this first before attempting to replace a heater core. What happens when a heater core goes bad? A heater core often goes bad due to leaking. As the heater core uses engine coolant to generate heat, a leaking heater core will reduce the amount of coolant in the cooling system....