2008 quadcab w 4.7L
I keep getting loose gas cap codes P0406 & P0407 says minor emission leak Loose gas cap So far I have spent over $300.00 at the dealer to resolve this issue, Including a new fuel cap (OEM) a complete software update, a smoke test got it back no code for 4 days now it's throwing the same codes again. it seems to happen when first started when cold once warmed up it doesn't code but does continue to light up Gas cap loose at odometer light area. I'm at a loss where to go from here on occasion I also get the deep code of P0007 any input would be nice thanks.