Main ac not cold but rear is

[stanley hall]

I have a 2002 Eddie Bauer expedition. The main ac blows warm air. The rear blows cold. At idle low side 37 high side 190 ambient temp 90 degrees. Small line on evaporator coming out of firewall sweating and cold large line warm. Could problem be a blend door?

 

[stamp11127]

Blend door or heater core water valve if it has one.

 

[stanley hall]

Do you know of any diagrams of system so I can see flow of air and see where blend door is located

 

[Yupster Dog]

I have a 2002 Eddie Bauer expedition. The main ac blows warm air. The rear blows cold. At idle low side 37 high side 190 ambient temp 90 degrees. Small line on evaporator coming out of firewall sweating and cold large line warm. Could problem be a blend door?

See if this helps you out.