Steve, is it your "Blend" door that is broken? The Blend door directs more
air or less air through the heater core to heat up the air before going into
the cab. Or, is it the "Recirculation" door? The Recirc door allows the
blower to pull air into the system from either the cab (thus recirculating)
or from the outside (fresh).
If it is the Recirc door, it usually breaks off and falls onto the fan
intake preventing the intake from taking in most of the air. The fan spins
at all speeds, but not much air comes out the vents. If that happened, take
the 3 screws out that hold the fan in (down by the passenger's feet) and
reach in and take the door out. Put the fan back in. I've been without a
Recirc door for a few years now with no issues.
A good while back, I took out the glove compartment, and IIRC, removed some
screws giving me access to the inside. A door was flapping in there, broken
off at one end. It was about 3 x 5 inches. The problem now is that cold
air comes in at all times, and makes if uncomfortable for the passenger. I
looked up there the other night, with very little time nor light, and could
not see how I accessed it before. I will try it again with more light.
Will try taking the three fan screws out as you say.
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