Hello, All! The Heater no longer produces very hot air, only slightly warm. When the dash switch is set to a heater position the AC compressor runs. Should it run on heat? I think it is supposed to run on defrost, but heat? I have flushed the cooling system, but I suspect the problem is electrical. This first became apparent after the Rack and Pinion unit was replaced. Is there any electrical connection that could have been disturbed when that work was done? I can;'t see anything that looks wrong around the rack.
Thanks for any thoughts. Paul