ACDelco GM Original Equipment 15-73597 Air Conditioning Vacuum Actuator

Works as it should very happy

I had no cold air, only hot air coming out of my 2007 Isuzu Ascender front passenger vents. I replaced the bad actuator with this one and automatically started getting cold air coming out of the front passenger vents and rear vents. Required me to cut a piece of metal out next to glove compartment to get to left screw but that was the only way to get it to come out without taking the whole front dash apart. Saved Money$$$

This is the part you need if the air only blows out of the defrost and floor vents and won't blow out of the dash vents on your Trailblazer. Search gmtnation for instructions on how to replace this part. It's not that hard, it took me less than two hours taking my time. The dealer wanted eight to nine hundred to replace this.

Great replacement part.2004 GMC Envoy. Passenger side hot/cold air blend door actuator.I didn't have to take apart the entire dash to install it. Just remove the glove box. 1 screw is at a really bad angle. Other than that, fairly easy job.

Works great very easy to install!!

Worked well

Best left to a professional. Terribly difficult to install, and didn't solve our problem. These must be calibrated before installation. We ended up taking our vehicle to a mechanic.

Replace ole unit. Seems better built.Pax side.