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defrost but no heat

2K views 4 replies 2 participants last post by  triplebeez 
#1 ·
hey, i have defrost but no heat in my 83, there is air coming out of the vents but its not hot or cold but the defrost is very hot. i dont really know what it could be, is it the heater core? or what else could it be? thank you
 
#2 ·
One of the blend doors is most likely not functioning and is stuck in the closed position, causing the heated air not to travel from the heater assembly to your vents. You need to pull apart the dash to get to the heater unit and see if the blend door is jammed or if the cable that controls the blend door has broken/become disconnected.
 
#4 ·
Just a matter of how intuitive you are :D

Not too difficult, just pay attention to how interior pieces come apart, and take pictures if necessary to help you reference for re installation. Should be a great starting point with that 83 to get you familiar with the basics of the heating unit, I would recommend giving it a try.
 
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