HeyJolly==It is by the receiver dryer which is that big shinny can looking thing by the evaporator. GoodluckJoe
The 2001 Mercury Cougar does not contain Freon. Freon was banned in 1996. I suggest you take this vehicle to someone who has the knowledge, tools, and skill, to repair the A/C system.
The positive crankcase ventilation valve on a 2002 Mercury Cougar is located on top of the engine; in the valve cover. It removes harmful fumes from the engine.
The evaporator emission system control valve on the 1996 Mercury Cougar is located on the left side of the car. It is in the passenger side headlight area.
In the valley under the upper intake.
Usually on the pass side valve cover
bleeder valve on cooling system
Through the schrader valve on the low pressure side.
The EGR valve is a round disk like device about 43-4 inches across with a hose coming off of it on top of the engine near back right of center of engine.
The transmission on a 2000 mercury Cougar is on the drivers side. If your planning on removing the tranny, the subframe must be removed. If your wanting to change the filter you are out of luck...it is deep inside the transmission. The pan on the side of the tranny toward the front of the car covers the valve body.
it is located in the back right corner of the engine compartment, it is back down in there a ways it is lower than the valve cover. I believe it has a red or yellow handle i dont remember
Freon valve on my 1989 Buick Regal Custom 3.1 V-6 located on driver side under the area of battery tray. Hope this helps!
There is 2 possible problems -# 1 your a/c system is over charged . # 2 The temperature control valve is not working properly