Did some more troubleshooting and everything works for rear air, ceiling and the floor, etc. except for the cold air. And when I go from hot to cold from the rear controls the air sounds different which makes me think the blender/actuator is doing something.
I felt the lines under the...
The rear air in my 2008 Yukon Denali only blows warm/hot air. Front air on both sides is fine.
There are a good number of posts concerning the rear control module and blend actuator, but the posts are written about models in the early to mid 2000's. Does anyone know if this same information...
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