I do believe this would be the problem. Change these and you should be set.
1)Part# E6ZZ-9C915-A :It's the small plastic valve on a vacuum hose directly behind the TB against the firewall
2)Part# F57Z-14A606-BA: This is a metalic cylinder with a connector on one end and a T on the other. Make sure you put the vacuum line on the right side as flow direction does matter. This one is located under the AC Canister on the same line as the first valve.
Hope this helps. Takes like 5-10 min to do