Hi - I bought a hummer h2 (adventure package) today. I bought the vehicle knowing that there are some things that need to be worked on such as air not blowing and bad air suspension. Sometimes it sits perfectly fine but other time it starts to sag. I bought coil springs to replace as a replacement.

I know that this isnt the topic where i should post about the air not blowing but can anyone help me to the right direction? I have no idea what need to get this resolved. i'm thinking it might just be the blower motor or wiring issue?

 

Look up blend doors replacement.
I dont have that problem but I remember seeing it talked about often.
Maybe thats it?