Message: The dealer wants $250 for a "tune-up". As far as I can tell, all they'd do is new plugs, PCV, and air filter. Is there any thing special about changing plugs on a 4.7 with the coil-on-plug design? I also couldn't figure out where the PCV valve is - even after looking at the sticker on the hood. Air filter should be easy -planned on replacing it with a K&N anyway. Any help available?
Subject: tune-up?