I got a diagnosis on my car. Bad blending door acuator. Blows cold air (door not closing). Estimate $750. I've had the dash out numerous times but don't know where the acuator is. Please help! Can I get a used part replacement and do it myself? This is a second car for me....but I want to keep my Blazer....but I'm cold!

The blend door actuator is located on the right hand side of the vehicle and can be accessed through the glove box.

This is a picture at eye level looking through the glove box area with the glove compartment flipped open and down out of the way. As well as a picture of the actuator itself after removal.

The History, Root Causes and Repair of Blend Door Problems

http://www.heatertreater.net/Final%2...fo.htm#History (http://www.heatertreater.net/Final%20Tech%20info.htm#History)
Hopefully this is the last of these SPAM messages linking to a site with information that is completely unrelated to the failures occurring in the s-series trucks. Nothing on that site applies here. Please do not continue to post links to this site. You have a PM.