Your 2001 Ford Windstar uses R134a refrigerant to keep your air conditioner running cool. Because your vehicle uses the latest government-approved refrigerant, you can purchase a refill kit that consists of a bottle of R134a, a service hose and a pressure gauge. Ensure the kit you purchase has the pressure gauge built into the hose, which will make recharging your Windstar AC quick and easy.

Step 1: Thread the service hose onto the top of the bottle of R134a. Turn the valve clockwise to puncture the seal on the top of the bottle. Turn the valve counterclockwise to expel air out of the service hose and then turn the bottle clockwise to close the valve.

Step 2: Park the vehicle and turn off its ignition. Open and secure the hood. Locate the two silver hoses that connect to the air compressor mounted to the passenger side firewall. Each hose has a black cap. Remove the smaller cap. This exposes the low-side valve.