Ford Forums banner

A/C distribution at low vacuum

1K views 1 reply 2 participants last post by  XWish Ute 
#1 ·
Have a problem on the XG (efi) that when I'm running up a hill for too long that the vacuum keeping the a/c running through the vents drops to a point where the air circulation switches to demist - the default

I know on my early 70's Cougars there is a small can in the heater control system to retain vacuum in the line.

Is this a common problem or do I have something wrong in the HVAC system? i would suspect it would be common across XE and XF as well?
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top