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What would cause a 1991 Chevy pickup to have no heat coming out of the heater The fan is working fine?
Wiki User
∙ 16y ago
the heatercore is most likely plugged up; get a new one; they are about 50 bucks; the ducts could have fallen off or rotted away but it think your heater core is plugged; a flush MIGHT help but a flush after your new heater core is installed would be money better spent
Wiki User
∙ 16y ago
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