I have a 2004 5.4 new body style that has a vacuum leak on the passenger side somewhere, I can spray carb cleaner between #3 & #4 cylinder around the intake area and the engine speeds up, I have heard about the intake bolts leaking air. has anyone experienced this? any other ideas would be great, I have heard about a common vacuum leak behind the intake on these trucks but I have huge hands and cant get my hand back there to feel for a loose line or a line tee, any help would be greatly appreciated!