I pulled all of the spark plugs and they are a little sooty, which is telling me the truck is running pig rich. I double checked the MAF, intake pipe, and vacuum lines. I couldn't see any obvious issues. I even sprayed around the vacuum lines to see if I could find any leaks that way. Can't find anything.
I don't know what happened but I hope it's something stupid.
The worst part is I need to have this fixed by tomorrow evening!
My dad has to sell his 2007 F-150 for financial reasons and I'm going to loan this truck to him.
Normally I would have plenty of time to fix it since it's an extra vehicle.
If someone can help me out I'll be happy to send some (or beverage of your choice) money!