Hello all! My name is Eliel, I’m from Deep South Texas. I recently bought/rescued a 2011 Colorado Z71 RWD 3.7L from my sister in law. The truck had sat for some time, as everyone in her family purchased new vehicles. It was rotting away so I offered to buy it. The paint was starting to burn in the sun, not badly though. The interior was dirty beyond belief due to their dogs, cupholders gone, reclining latch broken, etc. Engine oil hadn’t been changed in who knows how long; the oil pan plug was stuck, couldn’t get it out even with my impact. Ended up having to lift it and use a 22” ratchet to loosen it. Long story short, the truck was in disrepair and I’m slowly but surely bringing it back to life. It rides extremely smooth and has plenty of power for a small pickup (I towed a 2007 Pontiac Vibe using a vehicle dolly 400 miles no issue.) The only things I’ve needed to replace so far are the oil, FP hub assembly and A/C blower motor, but just today it got stuck in defrost mode. I’ve been doing some reading and it might be the blend door actuator, part # 15-72794. Can anyone confirm this? Thanks for reading and I’m happy to be a part of the forum!