Re: Is there an updated heater blower?
Fred, I would check the blower noise first as Joe suggests, Post 9, without the engine running to hear the different speeds. You can even run a hot wire from the battery to the blower spade for high speed ensuring the motor does turn.
If blower turns at a fairly good rate, then I would check cable action first, as others have suggested, ensuring the cables actually do their function and heater control levers are not broken.
You can remove the glovebox and then remove the heater assembly inside from the dash with all the cables and resistor block hooked up to see the doors work, directing air flow to the floor or defrost, the air temp door adjusting air temp, and feel the air from the blower still mounted on the firewall.
After removing the inside assembly palnuts from the engine side firewall, there is one nut left on the other side of the motor to remove so you can pull off the blower panel from the engine side.
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