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Heating and Cooling Issues

1K views 6 replies 6 participants last post by  SilverSport 
#1 ·
Hello Everyone. I am the proud owner of a 2001 Automatic Jeep Wrangler TJ with air conditioning. It has 135,000 miles. The other day on the way home from work, I began to over heat. I pulled over and let it cool. I checked fluids and all appeared to be at normal range. I got it home and changed the thermostat and filled it back up with 50/50 mix. Started and took it for a drive. All good except no heat. The hot is blowing out cold air, colder than outside air. I checked the hoses to the heater core and they are not even warm. I read many threads on this site and followed recommendations. I reversed flushed and flushed the heater core, reversed flushed the whole cooling system until it was clear as glass. I have checked the actuator-it is working as it should, checked all fuses-good there, checked switches-all good. I am not overheating. I still have no heat, as a matter of fact, when I turn the heater switch to warm it is still air conditioning, just not super cold air conditioning. When I turn the heater switch to cool it is super max cold. The switch to the defrosters, vents, and heater works as far as changing the flow of air. I checked the air condition lines from the condenser and as I suspected they are icy whether I have the heat on or not, the air conditioner is engaged. No heat at all. I am not sure what else to do other than disconnect the air conditioning unit to see it that works. Anyone have thoughts on this? Thanks from Montana where winter lurks just around the bend.
 
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