'98 Windstar Rear Air

Hey guys,
I was having the typical Windstar rear A/C issue.....hot air only out the bottom. I replaced the switch on the dash and I am now able to control where the air comes out but it is still hot. What should I be looking at to fix that problem? Thanks.

I checked the 4 lines that run under the belly of the van and into the control area in the middle row driver's side. None of them are cold. Shouldn't at least one of them be cold? The front air is blowing out at 43F. The low side pressure is only about 40 psi with outside air temperature at 90F. It should probably be closer to 50psi for optimum cooling.

Is it possible this is the problem with the rear air or is it more likely that I have a clog somewhere in the lines?

Is anything else going on behind that panel besides flipping the blend door? I know that is working since I can control where the air comes out.

Thanks for any help.

Chris

I checked the 4 lines that run under the belly of the van and into the control area in the middle row driver's side. None of them are cold. Shouldn't at least one of them be cold? The front air is blowing out at 43F. The low side pressure is only about 40 psi with outside air temperature at 90F. It should probably be closer to 50psi for optimum cooling.

Is it possible this is the problem with the rear air or is it more likely that I have a clog somewhere in the lines?

Is anything else going on behind that panel besides flipping the blend door? I know that is working since I can control where the air comes out.

Thanks for any help.

Chris

Sometimes the switch on the back panel causes the same vacuum leaks that the front switch does. It's cheap to replace and a good place to start.

Mine just has a fan speed switch in back. It is an electrical switch. There are no vacuum lines on it. Maybe a different year has rear temperature and fan control but not the '98. I'm not really sure.