Climate control cycles from cold to hot repeatedly
1999 S-10 Blazer with auto climate control. It goes from cool to blowing hot, then back to cool, then back to hot, ect...
What is the deal here?
I've read about the blend door and stuff. But this doesn't seem to be just a blend door stuck open. When AC is off, and it is on heater, it still does the same thing, but, it just doesn't get as cool.
Any ideas???
Chuck
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