2009 Eclipse with automatic climate control... I'm sitting in the dealer waiting room right now. Normal operation is to set the blower to auto and the other control to auto (under dash, dash vents, defrost, etc). Then I normally set the temperature to 70. It's worked fine like that for two winters now - heat blows out from under the dash in winter, and cool air from the dash in summer. Tuesday, it starts blowing cold air from the dash, even though the temperature outside was about 30! I bring it in for them to check it out, and a mechanic tries to tell me everything is normal. I just need to set the temp up above 85! And then he argued with me when I said that's not how it should work.
I suspect there's something obstructing the coolant flow. Any chance they might admit I'm right or that they were wrong??