Are those core seal products bad for your engine
I believe I have a bad heater core steam came out of vents and hot coolant leaked out of
dashboard seam on drivers side luckily I was only half mile from home.As luck would
have it I spent 280.00 the day before getting car check out for winter
Replace the heater core and coolant. Don't add those seal in a can products, it will do more harm than good.
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