1998 Jeep Cherokee Sport - A/C Problem
 

About a week ago I noticed that I was unable to turn the cool knob to
anything that remotely resembles cool. When I do, it just snaps back
to the heat. Any ideas what I can do about this? I live in S
Louisiana and its starting to get hot! I like to work on my car
myself, but typically its after I can diagnose a problem. Any help
would be greatly appreciated.