At the perfect time of year, my 99 Regal LS started something naughty this morning.
It was around 50 degrees this morning and I set it at auto for 73 degrees. After about 5 minutes I noticed it wasn't getting warmer. I noticed it was set for 3 ticks out of 6 to the Floor so I bent down and felt cold air coming out (unwarmed). "That's not right." I then manually set it for 90 degrees to the floor at full fan and it was putting out cold air.
Later today, I did some testing and found this. If I turn off the system for about 5 minutes, then go back to auto or manual mode, warm air will come out for about
15 seconds (it seems longer if the system has been off for longer, like it's building up or something) and then it turns cooler or cold again (not conditioned).Does anybody have an idea as to what part(s) is/are going? Hopefully it's something quick and inexpensive.. :)
Thank you for your help!