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There is 1069 on back order, they are supposed to have them in stock in mid July for a price of $650.00. Does this tell you there is a problem with them?
Mine also opened different vents, when I would slow down it would go back to vent or floor, speed up it went to defrost. It did this until it completely quit both times. The new heater control fixed it for almost 2 years. Now it is out again.
I hope this cheap fix helps you. Saved me $150.
The problem is that the vacuum harness is leaking vacuum where it connects to the back of the conrol head. The vacuum harness connection ports relax after several years. You can replace the vacuum harness (F5VY-19C827-A) $20, or just clamp it tight with 2 ten inch tie straps from the Lowes or Home Depot.
Pull the trim covering the control head straight out. remove the control head (4 screws). Remove 2 torx screws holding the bottom part of control head in place. Feed a tie strap around this part so it clamps the vacuum harness to the control head. I put one tie strap on either side of the black vacuum supply hose in the center of the harness. Operate the controls to be sure it is fixed.
If you wish, you can disconnect the vacuum harness under the dash for easier working room. It just pulls out.
I can post a picture if needed.
Gerry
pull the long trim piece covering the control head straight out. Remove the 4 screws on the control head. Remove the 2 torx screws holding the back cover on, so you can feed the tie straps around it.
Vacuum harness is F5VY-19C827-A, 2 feet long.
If that doesn't fix it, then look up Gino on ebay, He fixes the internal vacuum leaks in the control head solenoids on an exchange basis.
Gerry
Gerry
No you don't have to remove the WHOLE dash, just the wood trim piece, I can post pictures sometime of what I did. All you really have to do is pop off the wood piece (starting from the far right) and then it comes off.... After that the screws are visible in which to remove the EATC module, easy as pie, Also a lot of places on ebay give you a new one for $200 with a lifetime warranty. Very good deal if you ask me considering the Dealership wanted $700.00. I will probably do that myself once I return from the Marines.
http://www.mercurymarauder.net/forums/showthread.php?t=36922&highlight=repaired+- eatc+today&page=12
Ruel
We checked the fuses, pulled the unit and noticed nothing blown or obviously out of place.
I did read on this forum about soldering some connections under the hood but I didn't catch where to locate that board.
I have yet to call around to my local junk yards and garages to just replace the device, I'm hoping someone on here knows of an easy fix.
Thank you for your time!
Thank you.
Any help will be appreciated
Just happened to run across info on a Cold Boot process that fixed the problem and saved $300.00 to $800.00 depending on whether you put in a used one or let the dealer do it.
To cold boot which reinitializes and calibrates the vacuum actuators just turn off the ignition, unplug the two wiring harnesses for one minute, reconnect the harnesses and turn on the ignition. Then push any button except off on the module. Wait thirty minutes for the process to complete. It will appear that nothing is happening but just wait. It should be done in thirty minutes just try it and see if it works. Hope you get a success too.
The woodgrain trim above the module is a clip on I took it off with my fingers. Then four skrews that hold the module. Ease it out just enough to work on.
Take Care
George okc
Some of you have different problems and each need personal solution.
I'm repair shop owner with more than 10 year expirience, and have a degree in electric engineering. Crown Vics and Grand Marquis are our field for more than 12 years.
I can give you personal answers to your problem and pinpoint exact reason of failure by symptoms. You can contact me using my profile info, or google my name, since Edmunds prohibit posting emails or phone numbers as contact info in the posts and I'm unable to check this board on regular bases.
So, here are a few tips:
1. - If you cannot control air speed , stock on low, stock on high, or there is no air at all - than your fan resistor aka fan speed controller is bad! Located on the firewall, engine compartment, just on the right from the heater core. Buy it from dealer, it's about $60 and replace. Do not resaturn contacts on the old one - if it's happened - this resistor was hot and failed! And bad resistor can kill your climate control! (of course, you have to check fuses and fan motor itself to eliminate possibilities first)
2. - If you cannot switch from hot to cold air or from cold to hot - than your blend door motor acuator is bad! Located on the top of the blend door itself, in the dashboard behind the glove box. (have to pullout complete dashboard on the pass side to replace). Buy it from dealer, it is about $55 and replace. Do not buy used ones, it's not worse it. Also possible - blend door has mechanical issues and stock - inner temp sensor failed or air pass to sensor clogged with dust - climate control failed. But door actuator is most common.
2. If your vehicle is 95-97 and your a/c compressor does not engaged - your Climate Control need to be repaired/replaced.
3. - And finally, what people usually complain about:
- If air blow thru vents and than switch to defrost while you accelerate
- If air stock on floor or defrost only
Than your Climate Control (EATC module) is BAD.
Vacuum leak inside the control. All Ford-Mercury-Lincoln family cars with Electronic Automatic Temperature Control have this issue! From 95 to 2009 - every control has manufacture flow inside. Control need to be rebuild and updated completely to prevent future failure. No "mickie mouse job" as replacing o-rings or switching vacuum pipe is a permanent solution. Most of the time it make your control falling beyond the rebuild point.
Years ago I figured out what is exactly wrong there and found the way to fix a problem once and forever. Apprx 3,000 controls been rebuilt allready, with less than 1% warranty returns for the last 7 years. So we proudly supply lifetime warranty on our rebuilds. We can rebuild your, if it's still rebuildable or Exchange to one from our stock, that allready rebuilt, tested and ready to go.
We also rebuild and exchange Light Control Modules (LCM) for Crown Victorias, Grand Marquis and Marauders - all years from 94 to 2009
As well as ABS Control Modules (small computer on top of the ABS pump) for the above vehicles.
How do I contact you to get a EATC Module. I have a 2006 Grand Marquis with 35,000 miles and it just started switching the air to the defroster vent as I accelerate or go up a hill.
dbj
Where are the two wiring harnesses located that have to be disconnected for a cold boot.
thank you,
dbj
Thank you
dbj
and free shipping. Money is tight right now, was wondering if Bigmercs fix would work for me too.