2005 E450 Ford V10 intermittent misfires
My 2005 class C is built on a 2004 frame with the Ford V10 in it. It has developed an intermittent misfire this year but not enough to give a CEL. Google searches tells me that it probably needs...
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Some decent info so far, some not. The E-Series never got the 3-valve heads with the sticky plugs. The doghouse isn't wide enough for that V10 version. Also, an '04 chassis should have the PI heads with added threads. That said, when changing plugs, torque is critical to have them not loosen and spit. The internet consensus when I researched before doing mine was 28 ft-lbs dry.
I will also second the probable issue is a bad coil. I had one go bad on a trip, and got to change it in an Advance Auto Parts parking lot in Virginia Beach after V-9'ing over and through the Chesapeake Bay Bridge Tunnel at about 75k miles. A few months and 3k miles later, an intermittent skip at idle after decel started, and I sucked it up and changed all the coils and did plugs at the same time. In an E-Series, definitely not a faint of heart job. Took me 6 hours, and every combination of 1/4" and 3/8" extensions, universals, wobbles ratchets I had. I was able to get the torque wrench on every plug.
I will also second the probable issue is a bad coil. I had one go bad on a trip, and got to change it in an Advance Auto Parts parking lot in Virginia Beach after V-9'ing over and through the Chesapeake Bay Bridge Tunnel at about 75k miles. A few months and 3k miles later, an intermittent skip at idle after decel started, and I sucked it up and changed all the coils and did plugs at the same time. In an E-Series, definitely not a faint of heart job. Took me 6 hours, and every combination of 1/4" and 3/8" extensions, universals, wobbles ratchets I had. I was able to get the torque wrench on every plug.
