My wife drives this Jag, it has around 60,000 miles on it.

At the same time, both the A/C & the heat screwed up. Both systems are not low on fluids. The A/C is topped off with Freon & the heat is not low on anti-freeze.

Both the heat & the A/C work fine while driving along but both systems stopped working correctly when it is idling (A/C gets warm & heater starts blowing cold air).

Does anyone know what the problem might be??

~John

 

It is a 3.0 liter with every available option if that matters.

~John

 

Any change on the engine temperature gauge, like maybe it's on the low side? If it were then I'd suspect the thermostat's not closing properly. Accompanying AC problem is a stumper though.

 

I just can't figure it out how is this thing happen!? You only turn on either A/C or the heater, you can't expecting both system working in the same time, the way you described the problem no one can figure it out, may be Thermo or Astromog can