05' Expedition EB 4x4- Rear AC Blowing hot air

[haf8371]

I have a 2005 Expedition EB 4x4. Front A/C works fine, but when I put on rear A/C, It turns on but no cold air?? Does anyone know why? Is there a separate freon fill for rear a/c

 

[Hamfisted]

No, it's most likely a failed blend door actuator on the rear HVAC unit. Very common problem. The system freon is shared between front and rear evaporators.
https://www.amazon.com/Motorcraft-Y...H9T930NW47C&psc=1&refRID=3X3053S8GH9T930NW47C

But with the A/C on, lay under the right rear side of the Expy and put your hand on the A/C pipes to see if they're actually getting cold back to the rear A/C unit. They're just above the exhaust tail pipe, so use caution if the tail pipe is very hot.

The temperature blend door actuator is circled in red ( YH-1767 ) .... the high / low vent door is in green ( YH-1743 ) ....








Here's a good video explaining the repair....

 

[haf8371]

Thank you for your help! I will post updates on the repair.

 

[R Clayton]

I agree with ******...either that or the rear expansion block is bad. Good luck bud!