A guy at work was telling me that they are now making the E3 spark plugs for the newer F150's. I haven't been able to find them anywhere, but if they are anything like the ones that I put in my lawnmower than sign me up! Have any of you guys herd anything about this? I think I might have fouled one of my plugs (21k miles on the truck). The other day I stopped by my mail box to get the mail, when I got back to the truck I restarted it and drove to my house. When I got home, I put it in reverse to back into my driveway and it felt like it was missing (kind of like https://www.f150online.com/forums/sh...d.php?t=337759 no codes in the PCM), BTW, the water temp was about 200 degrees, the trans was about 200 degrees, and the intake air was about 163 degrees (hot day that day, about 102 degrees and 80% humidity). I played with it a bit and the missing was ranging from idle to about 1200 RPM, after 1200 RPM the missing went away. I think there might be a fouled a plug...for some reason?? I can't see a COP going bad with only 21k on the truck, but who knows. But anyways, I have had nothing but great experience with the E3 spark plugs and I would love to put hem in my truck. If you guys have any info on this, or with what might be going on with my truck, then let me know!!

 

As per their website, they do not make plugs for the 2005 and up 5.4 V8. They make them for the 4.2 and 4.6. I would suggest that you read the posts about the champions instead. A lot of guys are using them. They are available cheaper on line at Rock Auto Parts.

 

What benefits do the Champions provide? Everyone I've talked to swears by the Motorcraft plugs... I don't want to have to change these in another 20k miles... Maybe the guy at work has the 4.6L, I've never actually seen his truck...

 

The BIG difference is that the Champions ar4e a one piece design and the Motorcrafts are a two piece design. Some people have trouble removing them with out breaking. There is a very strict TSB on the plug removal procedure. Also that you have a 2007, you should take it back to the dealer and have it checked out first. Because if there is a plug problem or a bad coil pack it will be done under warranty. They may charge you to diagnose the problem but at least when a plug breaks you wont get r**** on an expensive bill.

 

I did not realize that you had a programmer or a CAI. Some dealers are very touchy when it comes to engine problems with theses two items are installed. They may refuse to do anything under warranty. If you have them service your vehicle like I do they might work with you.

 

Why would you think it is a plug fouling? I find that highly unusual. Just seems much more likely to be a COP. You might should have the COP tested before going to the trouble of changing the plugs.

 

I'm speaking from experience...with OLD cars. With the OLD systems, this has all the signs of a fouled plug, but I'm still learning these new systems. I did return my tune back to stock and remove the Edge Evo, just in case I did have to take it back to the dealer. BTW the stock tune SUCKS! Why would a COP go bad with only 21K miles on it??

 

Before you take the truck into the dealer for any warranty work, return it to stock configuration!.........Just my advise!

 

For a plug to foul out, it would have to be a bad injector flooding it oor burning excess oil. It could be a bad plug, but there just isn't much to go wrong with a plug. Have not heard of any failures. Have heard of some haveing trouble with a COP breaking down and causing a miss. Just more to go wrong there. These plugs will last 100,000 in most cases. I had mine changed at 65,000 and they looked new. It could be a plug, I just have my doubts and would be checking the COP was all I am saying.