Take it to a mechanic...
First, you have to know what's wrong with it. AC repair really isn't a DIY thing.. you'll be much better off having a qualified tech do it.
You need gauges to repair AC.
why does my ford focus over heat when i turn the ac on
If the system is low or empty of refrigerant, you probably have a leak. Take the vehicle to the professionals for diagnoses and repair.
on the 2001 Focus we found the low pressure port in the passenger front wheel well, hopefully this is consistent with the 2002 model good luck
Take it to a repair facility. There are EPA laws on the process, which you cannot possibly adhere to, unless you're licensed and certified.
What do you need? A diagnostic?, a repair? Do you know what problem is? What are symptoms?
its right in front of the passsenger side tire, you have to pull up the plastic part the covers the wheel
Take it to a mechanic.
Yes, there are diagrams available in the vehicle's service manual or repair guides that indicate the location of the low-pressure AC port on a 2002 Ford Thunderbird. Typically, the low-pressure port is located on the larger diameter aluminum line leading to the AC compressor, usually near the firewall or engine bay. You can also find helpful illustrations online through automotive forums or repair websites.
Turn your front wheels to the right. The charging port is behing the right front wheel, so I'm told.
No.