Heating the cab up

[kendelrio]

Being as awesomely hot as it is in Louisiana, when I drive the 5 ton, I usually have 5/55 A/C going (front, door and back cab windows and kick vents open @ 55mph) to cool the cab.

The other morning I was driving it and felt warm air on me and was trying to figure it out...

After playing with the various windows, I now know that opening the back cab sliding windows allows a vacuum effect and pulls hot air from between the cab and cargo bed. I closed it and the temp of the cab went down a good 5-10°.

So.... I will be driving with that closed from now on. Just figured I would pass along a "lesson learned".

 

[simp5782]

You close all windows except for drivers windshield. The air forced in then pushes out all the cab air holes there are etc

If you have an a2 truck you can piece together an ac kit for under 1000$