air conditioning brain?

[2000eb]

ok heres my problem i have the push button air conditioning on my truck...99% of the time it only wants to blow on the window, the defroster holes, i used to be able to get it to come out of the main vents but it would switch to the window whenever i accelerated. now its stuck on window... my rear ac works good though

 

[offroadexpy]

You more than likely have a vacum problem. I had the same issues with auto climate in an 03'supercrew I had, everyone that checked it out said that was the prob but no one, not even me was able to trace out just where the prob was......
One of those problems you pull your hair out over

 

[designit]

Yeah, that doesn't sound like a fun one... I thought I had an issue like that but figured out it was because the engine was not running... Maybe there's something to that?... Not that your motor isn't running but something in a switch somewhere that only allows defrost vents to open when motors not running (even though your engine 'is' running)... Just a thought...

On the other hand, I wonder if a capfull of seafoam down the panel vents would work?

 

[2000eb]

ill have to try the seafoam...seafoam fixes everythink...kinda like liquid ductape hahaha. but no really its bugging me my parents mountaineer has the same ac control as us and theres has the same problem my brother thought he read somewhere that it was the control panel itself but i cant find anything on it

 

[designit]

Guess you'd have to bite the bullet as trial and error to get a second unit & see what happens?.. Is this the one you have?

http://cgi.ebay.com/ebaymotors/95-0...ccessories&fits=Year:2000&hash=item519947fea3

 

[2000eb]

ya thats it... why cant i find any threads on this im lookin on here the other forum and explorerforum.com. there truck is from here mines from tn and had the problem too so it shouldnt be a dry rotted vac line or somethin which is more of a common problem in the southwest. everything out here dry rotts everything back east rusts... two different environments and they have the same damn problem. this is already buggin me i have been lookin and no luck so far... i know im not the only one with this problem

 

[2000eb]

http://www.explorerforum.com/forums/showthread.php?t=161187&highlight=ac

this is all i have found so far they have a very similar ac control system so now im just lookin for broken vacuum lines

 

[2000eb]

ok it started workin but i dont think it was anything i have done...it resorted back to its original attitude. it will come out of the vents untill wot then goes to the defroster? i dont have a clue but i do got matches around here somewhere

 

[hwy73]

Common problem with Ford EATC units........................

http://www.mercurymarauder.net/forums/showthread.php?t=36922

 

[2000eb]

thanks still makes me wanna start a fire under my truck...i have been checkin vacuum lines and aaarrrrggghhhhh nothing so far

 

[Thermo]

Something that makes finding vacuum leaks easier is simply using a slight pressure on the vacuum line (only 1 psi or so via a pressure regulator) and then using a soap bubble/water solution, you can spray every connection or point that is suspected and then see where you find bubbles. Bubbles indicates a leak. If you see the water get moved away, then you obviously have a fairly significant leak. But, based on what you are describing, you have something that isn't too bad else you would be tossing the CEL for a vacuum leak.

 

[2000eb]

i asked my mechanic buddy and he said maybe brain going out he rode in truck tonight and it was erratic it kept going from vent to defroster and back again. he said he has replaced around 20 in the last few months on lots of different fords, same control unit though

 

[JUST4FUN]

look under the battery box for the leak the acid likes the vacuume hoses
also see if the round vacuume ball is broken or cracked

 

[2000eb]

i think im gonna pull the EATC aka the "brain" and do this... i hope this thread will help someone in the future... super mods if you want you cant put eatc in the thread title here is the best i have found so far
http://www.mercurymarauder.net/forums/showthread.php?t=36922

 

[2000eb]

ok now im lost the eatc did not come apart like the link said i was hoping it would atleast kinda work the same the solenoids are molded on no screws etc to remove. and yes i tore that truck apart looing at all vac lines