Valpo Camper
Valpo, Indiana
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Well phooey, I need to read up more on my code reader. FOXWELL N630 is what I have. Hooked it up but could not find where to read the cylinder firing. Was not an option I could find in the live data fields.
From what I have read about the plug spitter problem stems back to a loose plug
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Grit dog
Black Diamond, WA
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^Yes some reports were loose spark plugs, but how you know if it was actually loose if it’s not connected to the engine anymore. Some would loosen, but I doubt anymore said hey that’s loose, let’s leave it and see if it blows out…
The root cause of the early 2V engines (not yours) was only 4 threads in the heads. They were revised to 8 threads and that helped quite a bit, but didn’t totally eliminate the problem.
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way2roll
Wilmington NC
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Valpo Camper wrote:Well phooey, I need to read up more on my code reader. FOXWELL N630 is what I have. Hooked it up but could not find where to read the cylinder firing. Was not an option I could find in the live data fields.
From what I have read about the plug spitter problem stems back to a loose plug
I got a cheap ODBII reader on Amazon that uses the torque app. Gives you a lot of information including actual live misfire counts. One of the issues with the Ford engines is the high misfire threshold for a code. So it can misfire a lot, enough to cause issues but not enough for a code. Loose plug or fouled coil - at least with a good reader you can isolate the affected cylinder. At this point maybe it makes sense to change all plugs and coil packs.
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mgirardo
Brunswick, GA
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I purchased this ODBII reader and like way2roll, I use the Torque app. Lots of good info for free. The paid for version gives you more and is like $5.
The unit I linked to is for Android only, if you have an iPhone, you might need to get a different reader. I've used it in several different vehicles and with several different Android phones without an issue.
-Michael
Michael Girardo
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Lumpty
Greater Gotham City
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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.
Rob
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Valpo Camper
Valpo, Indiana
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Alright, figured out today how to get misfire data out of my scanner while I was scanning my Audi so now I can go to storage and scan the C.
Good news to me is the Audi has no misfires for quite some time but it is due for plugs soon. No need for coils in it at the moment even despite its advanced miles, 230k miles
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Grit dog
Black Diamond, WA
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Grit dog wrote:^Yes some reports were loose spark plugs, but how you know if it was actually loose if it’s not connected to the engine anymore. Some would loosen, but I doubt anymore said hey that’s loose, let’s leave it and see if it blows out…
The root cause of the early 2V engines (not yours) was only 4 threads in the heads. They were revised to 8 threads and that helped quite a bit, but didn’t totally eliminate the problem.
So not a V10, but later model 5.4s in cutaway chassis apparently spit plugs too.
Was talking to my buddy this afternoon he was driving home in his 2015 E350 work van. 100k miles. Spit out its second spark plug. Last one was a few years ago.
Idk if the “newer” cutaways still have the old 2V heads or what.
PS he’s a die hard Chevy guy but inherited 3 Ford vans with the company he bought.
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Cruisineasy
Hayward
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Might sound a bit weird but, If you hear a ticking sound when the misfire happens I would pull the doghouse off and run the engine when its dark. Then you might see a spark caused by an electrical "leak". Just something easy and costs nothing.
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Valpo Camper
Valpo, Indiana
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Well the saga continues on this and my scanner.
Went and scanned the RV and my scanner will not give me misfire data on the Ford engine. WTH??? Updated software on the scanner and will go back and test again. If all else fails I will try the cowl off in the dark to check. I do not hear a tick but we shall see what gives.
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way2roll
Wilmington NC
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Valpo Camper wrote:Well the saga continues on this and my scanner.
Went and scanned the RV and my scanner will not give me misfire data on the Ford engine. WTH??? Updated software on the scanner and will go back and test again. If all else fails I will try the cowl off in the dark to check. I do not hear a tick but we shall see what gives.
Not sure when your plugs coils and wires were replaced last but it may very well solve your problem even without diagnosing a particular cylinder. AS one coil fails it stresses the rest and in turn they can also misfire. Just replace the coils and plugs and go from there. They probably need replacing anyway. Willing to bet it solves your issue.
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