Thanks for your reply. This is what I have done in the past.

A/C worked until about 3 years ago. I replaced the A/C control on the dash. I got it to work.

Then after some point, it stopped working again. I took it to an electrician that diagnosed it as a capacitor piece, that looks about the size of a cigarette box which is under the hood by the middle dash area.

Then it worked for a year. I took it again to the electrician, he said that by adding a transistor element, it could come back to work again. So he soldered a transistor piece to this capacitor and the A/C worked for a week.

I took it one more time and now he said it was not the capacitor or the transistor element, now it was the compressor. How could that be? I am not sure.

I wanted to get someone's opinion before I went all out. If were to change the compressor, what other items would I need? Also, is that a DIY kind thing that I can do?