I just read the service procedure for this - it's 5+ hours of time for someone familiar with doing it. You have to remove the steering column, driver's seat, and the entire dash. It's a big job, IMO.
Once you get to the part, it's a piece of cake, but wow...what a mess. The rear a/c is a MUCH simpler job - just pop off the right rear trim panel, and there's the blend door actuator.
FYI - if you have automatic a/c, there are two blend door actuators. If I ripped apart the dash to replace one, I'd probably go ahead and replace the other one while I'm in there unless the parts are prohibitively expensive. I'm guessing this is a $500+ job unless you DIY.
Is there anyway to see or feel the positions of the blend doors without removing the entire dash?
The dealership said there's nothing wrong with the AC, that it's just a big vehicle and hard to cool. But they only had it for 15 minutes. I can't imagine they checked more than the compressor pressures and function. So how would I check so I can tell them what the problem is?
The rear blows ice cold, the front blows semi cool, but the truck interior stays in the 90s even after an hour on the highway
55 on the rear vent. 80 on the front vent. I do use recirculating air. Dodge garage says a 20 degree drop is in spec, and it was 100 degrees+ in the parkinglot. But I used to get 60 degree air out of the fron vents. 4 years with this truck, and I can tell this isn't right.
Thats why I'd like to try to verify the blend doors before I have to spend a weekend pulling the dash apart