how to fix e150 e250 e350 e450 e550 Econoline Van ac stuck on defrost !

This is a common problem. There are two other videos I found that do this same fix but this is my spin on it which I think is a bit easier to implement. EDIT: After I made this video I went in again and added a small vacuum canister and check valve under the glove box to prevent the momentary drop out of the vents in the dash when accelerating the truck. Other than that it's still essentially the same fix. The canister I made from a can that I opened up by drilling holes into it and emptying the contents (juice) and then flushing it. I added some brass fittings with 1/8 inch barbed nipples to allow attaching the vacuum hoses. The brass fittings were soldered to the can. The check valve I bought on amazon and is inline with the vacuum line input to the can. If you don't know how to do all that (soldering, etc.) then you can buy a vacuum canister on amazon as well as the check valve and you're in business.