Hello all. I recently bought a 2010 Altima and found that the AC on the driver's side does not run cold. I started by charging the AC. After that didn't work I did some research and it sounded like the blend door actuator. I went to You Pull It and got 2 of them I've changed it out and it still blows hot on driver's side. It's starting to get warm out and I'm out of ideas. Do I need to bite the bullet and take it to the dealer or a shop? Thanks!!!