Well lets start that I just had plugs changed. Before that I noticed a bit of a miss and it still continues to miss it's getting worse. Around 60mph if I slowly get in the pedal is when it's most noticable. It did it a few times when warming up but not to bad yet. I do not have check engine light on nor is it reading any codes which makes me believe a coil pack is shot. Does anyone have a time frame on how long it takes to swap these out and is it nessacary to remove the fuel rail? I don't want to do just one coil pack and have another go out next week and I don't know which one is bad this is why I am wanting to do all of them. Thanks.

 

It takes only a few minutes. I remove the driver side fuel rail so the regulator moves out of the way of cylinders 7 & 8. But all of the other cylinders are easy to get to without moving much.

 

Only takes a few minutes for all? My garage is full of atvs and bikes so I will be doing outside and its a bit cold here in NE PA. So if it takes 3hrs I need to find a garage to work in.

 

Well if it's going to be your first time I'd put it in the garage, the first time I did mine, it took me and my dad a solid day. But that is because we didn't want to remove the fuel rail unless we absolutely had to. Needless to say we had to and once we did, it was a breeze, just don't forget to make sure the o-rings are on top of the injectors and not still in the fuel rail so when you put it back on it won't go. Good luck with it!

 

Or you can zip tie the injectors to the rail... to avoid a big mess. But when lifting the rail you have to individual work each injector loose and bring the rail up slowly. If your lucky, the zip ties will hold and no fuel will be spilled.

 

Hopefully I can get this done in a few hours. Doesn't seem to hard from the info I am getting. THink I am going to save some trouble and just pull the fuel rail off and be done with it.

 

And how much grease do I use for each pack and where exactly do you apply it to? This is new to me (coil packs change).

 

In my truck it started 3 years ago... A random sputter, I miss here a miss there, and when I would got on the throttle lightly it was more noticeable than at idle or under heavy throttle. Anyway, there's no way to really tell how long you have before it gets worse. I've heard of people noticing the symptoms a week before they absolutely need to change the cop's, and then you have lucky people like me that go for years without having to change them.

 

This is in the Articles and How To section, should help.

https://www.f150online.com/forums/ar...ange-pics.html

 

I did all of mine this past July. First time doing it, took me easily 4 hours or so, really taking my time. I didn't remove or relocate the fuel rails. Make sure you have socket extensions and swivel socket heads when you do it. Makes a big difference. Like everyone said the rear cylinders are a pain. Just takes some patience. You don't need to put a lot of dielectric grease on the COP. Just wipe it on the long bottom part where it's going to slide over the plug. Acid brush is easy to put it on with.

 

Well got all my coil packs done. Took me 1 1/2 hours without taking the fuel rails off. Pretty simple. The two back ones were a bit of a pain but all in all pretty simple. Thanks for tips fellas

 

Random misfire gone?

 

Yeah misfire is gone. I replaced 1 COP that was misfiring on Cylinder #6 and the mis was very slight then but no code for that mis. Since I didnt know which one it was I just decided to do all of them. I thought it would be harder but it was really simple.