Chrysler Repair: AC temp control problem:96 Concorde, chrysler concorde, concorde lx

Question
Kevin,
I hope you could help me out with my problem.
Car:
96 Chrysler Concorde LX, 3.3L

Problems:

First, When I turn on the car the AC comes on automatically.

Second, When the AC is on, it blows cold air for a few seconds. It then starts to blow hot air, I could even hear a door of some sort closing. I replaced the air compressor, expansion valve and still same problem. Today I replaced the EGR Valve, I think it is called that but not sure. It is located under the air filter tube and in front of the expansion valve. It has a harness connection and two vacuum connections. I went a head and disconnected the two vacuum connections from the EGR Valve. Once I did that, the AC was blowing cold air. Once I reconnected those two connections again the air was once again hot. I could not find a EGR Valve at Autozone or O'Reilly's. So I picked one up at a junk yard, but that in it self is a 50/50 crap shoot. Well I got lucky for a while because the EGR Valve from the junk yard worked for maybe an hour or two. It is now blowing hot air again, I disconnected those two vacuum connections but still hot air. I did the self diagnostic test on the ac temp control. By pressing the first two and last buttons on the top roll and got codes 23, 32 and 36. I did this test 3 or 5 different times today and the last one gave me code 32 only. I replaced the compressor myself and paid to have the expansion valve replaced. I have been trying to fix this ac problem myself but keep running into road blocks. Am no mechanic by any means butI like trying to problem solve issues but need help some of the times. I hope this is not confusing and is info that you could use. hope you could help me fix this ac problem.  

Frank

Answer
Hi Frank,
Two of the codes that you got refer to the blend door actuator, which moves the door that controls the temperature of the outlet air. Fortunately it is located on the bottom of the unit, above the center tunnel. There are two screws on the right side of it and one on the left. Drop it straight down for replacement, noticing the location of the "key" which has to mate to the replacement when you install it. It has a 5-wire black electical plug that connects it to the body control which is responsible for controlling its movement.
If you can reach up to move the lever that mates with the actuator I would check that the door is moving freely before installing the new actuator, and then be sure to position the door so it meshes with the door lever properly. One of the codes is for a "stall" of the door which implies it isn't moving but that could be the result of the failed actuator. You can probable get one from the wreck.
The 36 code says there is an issue with the internal communication between the ATC control system, but before doing anything about that I would resolve the blend door issue because that is clearly your problem in not getting the proper mix of air from the AC evaporator and the heater coil to produce the desired result.
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Roland