It''s now 5 weeks

5 weeks since our trib went in to the dealer for the stalling prob.Thet have replaced the throttle body for the sticking pedal prob. and they are wondering if this has something to do with the stalling.they have gone over the check list that mazda wants them to do and now are just waiting for the company to release the trib. As far as the heater/ac controls go if you leave the temp low and put the setting on defrost or defrost/floor blend the a/c is still working and you will get cold air on the floor.The recirc.setting will work for heat as well.