was the MAF an d were is located it at.. and mine is doing the same thing i change the timing chain and plugs and still doing it...is 05 5.4 3 valve is giving me all this codes but dnt no were to start lol...p0022,p0171,p0174,p0340,p0300,p0316,p2006 can anyone help me pls...thanks

 

I am seeing a lot of people with this same issue, I just bought my 2007 5.4 fx4 and had this happen 2 times to me yesterday (first day owning this truck). What I can't seem to find is anyone who has solved this issue.

 

My 2005 f150 begins stumbling once hot and eventually will stall. The youtube video below is exactly what my truck does. I read alot about phasers, vct valves not sure that is the problem. A little history.

My truck has 240,000 miles on it. It started this hot idle problem around 233,000 miles and eventually the engine died. Had a brand new engine installed, new phasers, new vct valves, new plugs and coils. Ran great for 6 months now it is starting to do it again. Has to be something that was not replaced. Help?1