Winterfront

I unplug my ac pump in the winter so it don't cycle an turn fan on

 

What I referred to was people I saw running North and South. Some had fronts that sections or quarters could be folded back as needed for more air. I do not remember why I saw one in a shop revved up with the hood open and the fan engaged. Someone else pointed out the fan blade deflection as the blades passed that area.
I started looking at them after that and noticed some could equally open from the center out. Old Blue to the left has space age technology air control shutters.

 

Whatever happened to those shutters? My dad's old '78 KW and my '80 KW had/have them but I've never seen them on anything built after the mid 90's or so.

 

Why unplug the a/c in the winter? It removes the moisture in the cab (on the glass especially) during wet winter months. When you the hvac to defrost the a/c is actually supposed to come. Turn on the a/c and use the temp. settings to warm the truck and remove damp air from the cab. Running the a/c 12 months of the year will prevent many a/c problems. No it does not wear out anything. It helps everything.

 

keeps the fan from comeing on

 

I've never experienced a lot of fan time in the winter any way. For me, a little fan time in the winter beats a/c trouble during the summer hands down. If stopped I will turn off the defroster and use just heat. Then when moving go back to defrost. Or in an older KW when moving use bi-level. That setting turns on the a/c and blows air out the dash and down on the floor.

 

I totally agree. The AC in winter to remove humidity with defrost is a very good thing