Re: does AC turn off on a Ranger
The AC runs on AC and defrost (and MAX in most) only. My 93's AC has started running all the time and I'm pretty sure it's the AC button on the HVAC panel. When the AC is running the clutch on the front of the compressor is engaged. You can tell by the front face of the clutch is spinning at the speed of the clutch. If that front face is stationary then the AC is deactivated.
If the AC is running all the time no matter what position the HVAC panel is set to then there is an electrical issue with the switch. We have a 2011 as a delivery truck at work and the AC runs only when it's supposed to.
As to fresh air all Rangers have a vent function to get fresh air. The issue is Ford put the fresh air ducts in a sucky place and you get engine air VS fresh air. lol
94 Splash 2WD, 5sp, 4.0L, Custom paint, Black-n-Red interior, Lots of go fast goodies!
93 XLT Ext Cab, 4x4, A4LD, Cayman Green / Tan, More or less stock for now.