Gents,
I took my 23 Trail boss on a drive yesterday and on the way up to our destination I had the heat set at 74 and on auto. It would blow between cold and warm air but it was tolerable. If I increased it to a higher number, it seemed to warm up but never seemed to stay steady. Hot and cold. Today on our way back, I had it on High and auto but I was getting lukewarm air out of the system. The engine temp was normal. External temps were around -20 on both days.
Any ideas on why? I looked for winterfronts but I can't seem to find any for the 1500's.