I bought a 2005 Ford F150 5.4 L 4 x 4, and so far I have discovered that this model and many like it suffer from some common ailments. The first being the transmission likes to shutter coming out of a higher gear into a lower gear next is the four-wheel-drive, vacuum system, then I found the instrument gauge cluster has issues. My question is this what else is going to be going wrong with my truck so I can get ahead of the game?