Hello all. I've had a problem with my car's heating and cooling for almost 4 years now and my friend/mechanic and I have been unable to solve it. When turned on, the AC and heater only blow out outside temperature air. So if its cold out, even with the ATC set to 90 degrees, it blows out cold air. If it's hot outside, even with the air condition on and with the ATC set to 60 degrees, it blows out hot air. Incredibly frustrating. No error codes. Last year, we replaced the ATC unit however the problems persisted. Last week I did the ATC self-diagnostic and for the first time, two error codes actually came out (25 - Ambient temperature sensor failure and 26 - ATC in-car sensor). My mechanic replaced both of these and flushed the heater core for good measure. The error codes disappeared but the problem still persists. There have been a few other issue with this car over the years but this has been the most frustrating. If anyone here has any suggestions on where to go next, they would be greatly appreciated. And please let me know if you need additional information. Thank you all kindly in advance.
have the same problem?
Sunday, January 12th, 2014 AT 5:24 PM