I did the oil cap test. I only saw white smoke dusting out of it but there was no pressure able to blow the cap off. Just the vibration of the truck annoying slid it off.

I also found out another annoying thing doing the test. The AC compressor turns on for any heat setting except for feet only selection. It worked literally for every other setting. Is this normal for these Ford trucks? Or did my previous owner rewire this thing on me? Anyway, I pulled the plug on the compressor so it won't run. The only reason I can think of for Ford to do this is to keep lubrication on the seals during winter months. But geez I could run it myself 10 minutes a week, I don't want it running all the time!