My check engine light came on Tuesday night, and said it was P0456 evaporative emissions leak.

Did a search and the consensus is that my purge control valve is bad.

OK, where would I find this puppy on a 2013 F150 Ecoboost 3.5L engine?

I also read that it could be an emissions component. I have 79,200 miles and heard something about a 80,000 emissions warranty.
I would hate to take it in and have them charge me to do something if it is not covered by the warranty. So where would I look?

 

According to the Pictures it is behind the oil fill on the left side and if it is the problem it is covered, at least at my Ford dealer it was on my Mustang at 71,000 miles

 

If you're in one of the eastern states that has adopted and enforces the California emissions requirements and regulations, the emissions warranty is only 7/70.

 

Maryland is one of the states, but it extended the service not reduced it.
I could not locate it, so have an appointment next Tuesday, and they charge $99 to diagnose the problem. If it one of the covered parts, no charge.