Blown head gasket
4 Answers
Why do you think of say that a blown head gasket prevents the heater from blowing air?
if its head gasket BLUE DEVIL IS WAY TO GO WORKS GREAT
Auto_Adrenaline answered 6 years ago
If you're heater isn't working, that's not a head gasket. It's likely your heater core.
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Those year Explorers are known for the blend door actuator motor going out. Fifty buck part but the dash has to come out to replace it. Check the net, there is a manual workaround involving an electric cable tie, drilling a small hole, and attaching it.