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.
The Schrader valve on a 2001 Mercury Cougar is typically located on the fuel rail, which is situated on the engine near the fuel injectors. It resembles a tire valve and is used for checking fuel pressure or releasing fuel pressure before servicing the fuel system. Additionally, it may be found on the air conditioning system for checking refrigerant pressure.
On a 2000 Mercury Cougar, the PCV (Positive Crankcase Ventilation) valve is typically located on the valve cover. It can be found on the driver's side, near the rear of the engine. To access it, you may need to remove any covers or components blocking your way. Always consult the vehicle's service manual for specific instructions and diagrams.
Usually on the pass side valve cover
On the 2002 Mercury Cougar with a 2.5L engine, the air bleed valve is typically located on the thermostat housing. It is a small valve that allows air to escape from the cooling system during the bleeding process. You may need to consult the vehicle's service manual for exact positioning and instructions on how to use it effectively.
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.