Question about 1984 Dodge Caravan

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No heat. tried a few things still nothing

I have a 2001 Dodge Caravan 2.4L 4cylinder Motor. I have not had heat in about two full years. Last Summer my van overheated and when I had it serviced the mechanic changed the radiator because it was clogged beyond repair. Since then the car runs cooler, but yet still no heat. I tried running the heat on high and touching the heater core inlet and outlet hoses and they were both scorching hot. I then tried cutting the heater core hoses and flushing water with a garden hose through the inlet and out of the outlet and reversed until all debry and rust particles and junk came out and the water flowed through at full power and crystal clear. I replaced the old hoses with new hoses. Still no heat. Now Im being told that it may be something call an "Air Temperature Actuator Motor" Which is the motor that controls the vent door and allows the heat and cold air mixture to come into the cabin. However this part is extremely expensive dealerships want $340.00 and I don't think pulling one from a junk car would be a great idea anyway because if mine is blown a used one most likely wont have much life in it anyway. Does anybody think this is the problem or maybe have another suggestion and how to get to the part to service it or even to change it??? Is there anyway I can open the dash and find that vent door and force it closed and leave it closed so this way I can get heat off the heater core in the winter and I can get ac off of the recycled cabin air but no fresh vent air from outside? Or is that not an option at all? I really dont have the $340 to buy the part or the extra cash for the labor. Also one more thing. A couple spots on my gauges are dim. Does anyone know if I would have to replace the gauge cluster or is there a way to get to the gauges and change the bulbs to make the gauges brighter? Thanks in advance and I look forward to any all responses and suggestions. John

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Just put a new holley reman carburater on 2.2 , after it sits all night it will no start it seems to have no fuel in the bowl , no pressure on the gas tank. im a transmission tech carb.s is not my thing please send any sujestion would be acepptible thank you, o, by the way the old carb did it to ...... help me please am open for sujestions... zack

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