Crazy heater problem

[charliejon]

So my heater has finally lost it.... It will stay off and click itself on and off and on again, but the whole time it's says its off....the good thing is that it blowns nice cold air in the process. I checked my codes and it said that I had a blend door problem, but I have know this for a few months and this a new problem that just started... Is it the EATC is it crazy or should I just turn the radio up.... Its a 93atx

 

[JEFF_24V]

My 95 mtx is doing the same thing, awful clicking noise and I only have cold air now. Couple monthes ago had only hot air. Mine is the blend door problem too. Aparently it is terrible to get at it, have to pull the whole dash. Good luck with it.