Why, do you think that your plugs are crossed and your truck is firing out of order???? If that were true, you'd have a much bigger problem than simply throwing a code. I don't even think your engine would start, and if it did, it would run so bad that you wouldn't need a code to tell you something was misfiring. You sure it ain't something else? did you recently take off ALL of your plug wires at the same time and then put them back on without marking them???? Give us some details. The firing order IS listed in your manual, i just don't have mine on me right at the moment.
Hi tom, i just wanted to know which one it was so i could check that particular plug/wire. I am going to replace them all. I have replaced them all before one at a time when i had the same code, that was about 15-20k ago. The truck idles a little rough and seems to miss fire, but no back fire. Also i bought the truck used a couple years back and did not come with a manual.
Hmm, makes me wonder why that one plug keeps going bad. What type of plug are you using?? You should get more than 15-20k out of them, unless they're just plain copper plugs. Heck, for 2 bucks each, i'd just replace them all again.
I will say i used autolite this last time, but that was before i did some reading on this board about them. I am going to get the motorcraft from the dealer. This is the 2nd time i have received this code for this cylinder. I'm not much of a mechanic but some people who hear my truck say "what's the noise?"
The 4.2V6 naturally makes a ticking noise. All of them do. It's been discussed many times. This noise is normal. Switching to a 5w30 or any heavier weight oil will significantly reduce this noise.
I run Autolite Platinum plugs and found that they work perfectly. However, if your sceptical about aftermarket plugs then just toss the motorcrafts in there. They're a great plug too. The only reason I don't use them is that they are very very expensive here and hard to get. Mostly, I have to order them over the internet because the dealer doesn't even stock them (the dealer network for Ford is terrible down here). I've been running Autolites for about 15K miles now and haven't had any problem, truck runs great. But you'll get mixed feelings about autolites here.
On the other hand, I've tried some NGK's (which I run in ALL of my motorcycles) in my truck and they stunk!!!! But other people swear by them. So just because someone says they had a bad experience with a particular item, it doesn't mean they won't work great for you.
Proper gap is very important also. Alot of people assume that when they buy plugs they are already gapped to spec, but they are not. And they need to be properly gapped before installation.
The Autolites factory gap is WAAAAAAYYYYYYYY off of Ford spec. I mean WAAYYY off!!!!!!, which is why you probably read alot of people complaining that they don't work right, because they probably buy them and just toss them in assuming that they are already gapped. That's where they run into the problem.
Nothing wrong with Autolites, they are one of the biggest spark plug companies in the world. They didn't get there from manufacturing an awful product. You just need to set the gap to spec before installing them, that's all.
2007XL R/Cab,4.2 V6,auto
