Where is the air conditioning low pressure valve on a 2000 Ford Focus ZX3?

The low-pressure AC service port on a 2000 Ford Focus ZX3 is typically located on the drier, near the compressor. It's usually a blue cap. However, the exact location can vary slightly depending on specific model year and trim level.

Because of this variation, it's best to consult a repair manual specific to your 2000 Ford Focus ZX3. A Haynes or Chilton manual will have diagrams showing the exact location of the AC components. Alternatively, you can find diagrams online by searching for "2000 Ford Focus ZX3 AC system diagram".

Caution: Working with refrigerant requires special tools and knowledge. Improper handling can result in injury or damage to the AC system. If you're not comfortable working on your AC system yourself, it's best to take it to a qualified mechanic.