2006 F250 5.4 engine problem
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Joined: Aug 2016
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2006 F250 5.4 engine problem
Ok I rebuilt the engine in my f250 5.4 3v. Timing set cam phasers and oil comtrol valves are new. Problem im having that just started after 5k miles on new engine is all of a sudden i will start getting misfires 1st time it happened said #6 i changed coil same problem came back this time said multiple misfires now im just getting #4. When the misfires happen if i hold throttle where it is it will missfire as long as i hold it there if I let of gas then apply right back missfires stop for several miles then will happen again. I have changed fuel pump and fuel pump driver module same problem exist. Any ideas please
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Joined: Nov 2004
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Yes - didn't happen all the time, but enough to be worrisome. I'd be pulling out onto a main road, for example, give it the gas and it would start coughing and bucking - had to let up on the gas to let it work. In the meantime, traffic was flying towards me.....not fun.
I also switched to ethanol free gas.
I also switched to ethanol free gas.
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