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Took my 96 c4 out for a spin, temp. Was cold so set the temp.at 70degrees. Heater came on everything working great drove 80 miles and stopped for a coke.
Got back in after about 2 hrs. And stated back to the house, noticed temp. Was still at 70 degrees and still cool outside. But the a/c was on and cold air blowing out vents. Had to set temp. To high 70's low 80's to get any heat out vents.
So I really need help getting this problem taken care of, help please.
Sounds normal to me if the sun was shining on the car or the cabin got heat soaked from hot engine/trans while sitting= cabin temp higher than temp setting.