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The heater core isn't leaking Do you think the valves are clogged or is the heater core broken?
Wiki User
∙ 7y ago
With the vehicle warmed up and the heater on, grab and feel the two heater hoses. If only one is hot, you've got blockage either in the lines or in the heater core itself. If both are hot, the problem is going to be your blend door.
Wiki User
∙ 7y ago
Wiki User
∙ 7y agoThe year, make, model and symptoms info would help.
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