2005 Chevy Cavalier. When driving, air conditioner blows cool and works fine. When stopped for more than a few seconds at a stop light/stop sign, etc. air blowing from vents turns hot. The temp on the vehicle goes up a little higher than normal, but nothing alarming yet. Possible problems?

SOURCE: programming alarm on chevy cavalier

The easiest way to do this is to take your ca to the chevy dealership and have them program it for you most places will do this for free, so you should call around to see if they charge.

SOURCE: 2005 cavalier cluster problem

Well I installed a brand new speed sensor, and lost my money there because it didn't make a bit of difference. So I Googled and called around, and found a used cluster for $112 bucks with shipping. One of my local guys is going to install it for me at $30 bucks. If that won't fix the problem, I guess I'll ask for a Government bail out and have it fixed at the dealer.

SOURCE: 1999 Chevy Cavalier A/C blows hot air

More likely the recharge blew a o-ring and you have a leak. When your Cavalier was blowing hot air and a recharge fixed it that means it was low on freon which lets o-rings dry out, go back to the shop and have them leak test it. They use a pressurized dye to find the problem. If it's blowing it's not the cooling fan relay, they may have meant compressor relay but I'd have a leak test done first it's not expensive and easier that chasing unknown possibilities.

SOURCE: ac blowing hot air

the blend door actuator located on the air box (right hand side under dash) is prob. inop. worst case senerio the blend door its self is broken. I have replaced the actuator more than anything.

SOURCE: air conditioner problem with 2005 chevy 1500 silverado

I have the same problem exactly, if i turn off the ignition and then turn it back on it begins blowing cold air again. I would like to know what the problen is as it sounds like it is not unique to just my vehicle.