The EATC in my 87 T-Bird Sport will not hold the temperature setting. I'll set it for any temperature other than 75 deg and when I turn the key off and then back on the temperature returns to the default 75 deg. The local Ford dealer service department was not thrilled about troubleshooting the problem. Does any one know where I could send the EATC for repairs?
I have one from an 88 Turbo Coupe that I can ship to you for $40. It was working fine when I pulled it from the car.
At this point replacement might be your only option. You might try emailing this gentleman, Paul Protos, at: polyscroll@hotmail.com
He repairs factory Ford radios and may be able to help you as well.