A/C and Heat not working up front.

'99 Expedition--During the summer, the A/C started blowing hot air in the front, the rear seemed fine. I took it to the local dealer and they told me it was my compressor and evaperator and everything else associated with the A/C system. I thought this was wrong so I left without having it fixed. Now it's winter and the heat does isn't as hot as it should be up front either. It seems to be warmer in the rear but I don't think it is as hot as it should be. Blower motor is working fine. Any ideas. Thanks for any help. So many people, so little answers. It's supposed to be cold again next week and my wife is originally from FL. (It's her Ford, I'm just the guy who works on it.)

ever find out?

After over 5 years, either it is repaired, replaced, traded or poster has never returned. I doubt they will answer you.