My A/C is cold on the passenger side, and warm/hot on the driver side.
Why is this happening. Is this an easy fix, or do I take it to my mechanic?

 

Sounds like a BLEND door issue. Front "DUAL" zone Heat/AC have multiple blend doors to control the temp on both sides. Could be a vacuum issue, or a physical stuck/broken issue on the Drivers side. Never had to tear mine apart, so I don't know how hard it would be to get to the blend doors to look at them.