A/c problem need help ASAP please

[marauderoner]

So a while back my a/c stayed at hot and wouldn't change to cold, I did some research and it ended up been my blendoor actuator switch, which I my self rnr it (it was a pain in the butt) my a/c would work fine and it was cold, but I noticed that when I was in the freeway and the rpm's where higher the a/c would stop blowing from the air vents and change to the windshield defroster vent by it-self then wen the rpm would go back down it would change back and it just kept happening, now a few days ago when it actually started getting hot here in Los Angeles I used my a/c and noticed it was only blowing air from my windshield defroster vent and no longer from my air vents, I'm thinking it my be a vacuum hose or a valve? But has anyone had this happened to them and might no what it is so I can get straight to the problem and fix it???? Let me know guys thanks

[PonyUP]

So a while back my a/c stayed at hot and wouldn't change to cold, I did some research and it ended up been my blendoor actuator switch, which I my self rnr it (it was a pain in the butt) my a/c would work fine and it was cold, but I noticed that when I was in the freeway and the rpm's where higher the a/c would stop blowing from the air vents and change to the windshield defroster vent by it-self then wen the rpm would go back down it would change back and it just kept happening, now a few days ago when it actually started getting hot here in Los Angeles I used my a/c and noticed it was only blowing air from my windshield defroster vent and no longer from my air vents, I'm thinking it my be a vacuum hose or a valve? But has anyone had this happened to them and might no what it is so I can get straight to the problem and fix it???? Let me know guys thanks

Same thing happened to me, sounds like the O-rings on your EATC are fried. Good news those, its and easy fix. You can look in the search for EATC and you'll see a few threads. I recommend, and it's how I got mine fixed, contacting Fastblackmerc, he repairs them quick and solid. Had mine back in a few days and it was cheap. Now my big butt freezes everytime I drive the Marauder.

[marauderoner]

Same thing happened to me, sounds like the O-rings on your EATC are fried. Good news those, its and easy fix. You can look in the search for EATC and you'll see a few threads. I recommend, and it's how I got mine fixed, contacting Fastblackmerc, he repairs them quick and solid. Had mine back in a few days and it was cheap. Now my big butt freezes everytime I drive the Marauder.

What's an EATC?

[BATMOBIL]

Its an easy fix! Bought a new one bout a year ago an took apart the old one to see how to repair it. there are threads showing how to.

[fastblackmerc]

What's an EATC?

It's the unit above the center gauges that controls, temp, fan, etc.