How do I clear the AC drain line in a 2004 Trailblazer?
Not extremely familiar with the a/c systems but when I had trouble with my I used this page to trouble shoot the issues. Not sure if it will help you. http://www.wikihow.com/Fix-Your-Car's-Air-Conditioner
Search Chevrolet TrailBlazer Questions
Chevrolet TrailBlazer Experts
Related Models For Sale