Man i read a thread before that some people were having problems with their far right passenger vent blowing cool air when the heat was on? I have the same problem also, when the heat is on cool air blows from that right vent? All the others are fine just that one? Also there was a thread on the proper way to flush or relieve any air from the heater core? if anyone has that thread or link please relay!! thanks all

 

front end 39" up in the air
rear end on the ground
that is the "correct" way to bleed the cooling sys on the early cars

 

My 94 gxe was an exception to the rule, but mine was hot on driver's side, and progressively the dash vents got cold as you got closer to the pass. vent. Mine was simply too little coolant in the radiator. But I was lucky. I think other people had trouble with air lock, or blender door malfunctions-loose vacuum tubes or wires that control those functions. Also make sure that the valve on the firewall is working correctly.