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Thank you all for the responses--I have to get back to other work for a few days, but once I get on the HVAC system again, I'll put more information on the thread.

Yes, that was it. Worked smoothly and responded quickly to the temperature control.

Is there an easy (relative I realize) way to get a finger on the evaporator or the heater coil(?) to see if it they are hot or cold? I can see the blower right under the glove box but I am not ready to get into the dash quite yet.

Thank you--When I turn up the heat (leaving the AC on or turning it off), the temperature rises the same amount each time (about 100 to 120 right now). Seems to be working. I also put my finger on the actuator and it rotates as I increase the temperature.

Thank you for the reply, also. I checked all the connectors--just one off the accumulator and all the others around it. Nothing seemed out of line. I also replied to MotorCityFats13--see answer there for his questions, but I'm not sure which way the valve is open or closed.

Thank you for the reply. I located the valve, and before I started the arm was pointed down. After starting the engine and the rear AC cold (and a thermometer in the front seat vent reading 100), I checked again (maybe 30 seconds) and it was still down. I turned the AC of and on a few times...

Max cold and max heat, floor, dash, defrost and all combinations are the same in the front; all hot. Rear responds properly. EDITs: 1) using a thermometer, I see that the air blowing in the front does change temperature. I couldn't tell the difference between 115 (cold) and 140 (hot)...

Good Afternoon! (kind of) I just replaced the compressor and accumulator on my 2007 Eddie Bauer v6, and hot air is coming from the front vents, while cold air comes out of the rear vents. If it was the opposite, I probably wouldn't have realized until I had friends in the back! Oil and...