So after trading in my 07 because of a driveshaft clunk mystery that could not be solved I bought a 2008 Crew Cab Long bed 4x4 Titan. Now 3 weeks after owning the truck and only 1200 miles my MAF sensor went out?! I don't know what it is. Maybe I'm just bad luck with these things...but all I can say is in my book the Titan is on its last life line.