joe0072

I have a 2003 silverado with dual climate controll. The passenger side works great. The drivers side wil work for a couple of days then start blowings cold air , I can move the cold /heat selector up and down a couple of times and most of time time start working for awhile. I had posted earilier about problem and someone said to change the drivers side blend door actuator and go to youtube for how to. started checking out videos and didn't see any with dual climate controlls. It looks like there is three actuators and I don't want to start just changing parts. does anyone have a diagram of heat /ac system so I can get location ?
Thanks for any info Joe