My rear AC gets warmer after the rig warms up. I am going to check the blend door actuator but also was wondering if anyone puts a block valve in the coolants flow to the rear AC to shut it off in spring so as not to have that coolant heat even int he rear system during summer? I live in 100 degree & humid summers so it is of interest to get max cooling from AC system. If anyone has input or info on which line is the supply, done it, etc, please advise.

 

If it has all the original parts on it, it should be with the same shut off as the front. If the valve was ever replaced it could have been installed backwards which would allow the front to turn off but never the rear

 

Just wondering if you found anything here?

 

I did find that the original valve on the V10 does shut off both front and rear. I guess the diesel it only does front. My issue is there is no vacuum going to it to be shut off in RECIRC for some reason.

 

PM me SuperDave if you want me to explain in more detail what I found. We can get on a quick call.