Yes, but it isnt easy. Heater box is different, vacuum to activate mode doors is completely different, exterior ambient temp sensor needs to be installed, EATC blower fan is PWM controlled instead of a blower resistor, lots of woring needs to be added, etc, etc, etc. Probably easier and cheaper to sell your current ride and buy one with EATC.
As Jeff says, if you don't mind pulling the dash out of the car, then it's possible. I can't imagine it possibly being worth it though. The auto system is pretty nice for the age of the vehicles it was installed in, but the manual also works just fine.
Good time to ask! I'm already starting this same mod. I'll try to take some photos or video while I'm at it. But price wise, the jy is your best friend. Picked up most of my stuff at U-Pull-N-Pay during their pull-a-thon; all you can carry for $74.99, so I can't tell you how much it would normally run.
Here's what you'll need:
ICP* (it's worth disassembling and cleaning/relubing the cassette first) ~found first on eBay for $20, a good deal. bought three more at jy
Blower Resistor (it's much bigger than the manual) ~bought used on eBay for $20 with a spare blower. but I've seem the part go for $100!
Blend Door Actuator (black housing is for EATC, white for manual) ~bought new oem for $20
RCC (mounts next to the blend door, has the vaccum lines comming from it) ~gotta go back to the yard, ran out of time during the event
Vaccum Lines (comming from the RCC, different end than manual) ~back to the yard again
Inside Temperature Sensor (usually comes mounted to the ICP. Usually dusty, be gentile cleaning) ~both came with ICPs
Air Hose for Sensor (white hose comming off ICP, could probably fabricate) ~got first section, gotta get the second. to the yard!
Outside Temperature Sensor (mounts behind grill, if you have temp. on your dash/cluster, you already have this) ~still gottta get this. might buy new. idk
Sunload Sensor (mounts on defrost vent. If you have auto headlights, you already have this. Be warned as I've heard these have a rather high jy failure rate) ~will buy new for $30
Box Fan/Climate Controlled Garage/Lots Of Cloud Cover ~Death has forsaken me on this one
A Lot Of Pepsi ~it's cheaper to buy 2L
Headlight switch (if you wanna add auto headlights. It's pretty simple)
Gauge cluster (if you wanna add an outside temp display. This is a much more advanced mod)
Defroster vent (only if you don't wanna Dremel your existing one)
Wood bezel ('cause why not)
*It's worth mentioning that 2000-2003 and 2004-2006 are NOT compatible. Check the controls, if you have an "Outside Temp" button, its the earlier model.
And for whatever reason, Ford never combined a CD player into the EATC. So you'll either have to live with tape (which I do!) or put a 6-disc changer in (which ill also do)
I got a 92 mercury sable LS wagon that I've halfway installed a new head unit in.. I say halfway because I got all the wiring done up and plugged into the factory harnesses, turned the car to give it a try but got nothing. The head unit turned on just fine but I got no sound. I've installed all...
I apologize if this was already covered but the search feature doesn't seem to be working very well. This is a bit tedious.
Turn signals don't work at all.The hazard lights, high-beams and wipers work. Fuse#36 is not blown.The car used to have no problem at all with...
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