134A refrigerant which can be purchased at WalMart or any Parts house.
100,000 miles
You cool it and run it through a metering devise.
Take it to a shop that does ac work and have them recover, evacuate and recharge the system but the question I have is why do you want to change the refrigerant?
Every 3000 miles for regular oil.
if you can get it off easily..you can install the new one..:)
No you don't have to change the A/C Compressor.
manual
location fuses in qx4
There is no need to ever change the refrigerant which is R134 and not Freon R12.
The flame of a Halide Torch will change to green if it detects a refrigerant leakage. This color change is due to the presence of chlorine or fluorine compounds in the refrigerant reacting with the flame. It serves as a visual indicator to alert the user to the presence of a leak.
The refrigerant change of state is what causes the heat transfer. The refrigerant is a low-pressure liquid when it's in the evaporator, which absorbs heat from the air, cooling it. The absorption of the heat causes the refrigerant to boil (change state from liquid to gas). The gas is then brought to the condenser in the front of the car where it cools (rejects heat out) and condenses back to a liquid.