It seems to be a pain to change these plugs with the COP.
I changed mine yesterday. It wasn't quite as bad as I anticipated, but took a while.
I've read of those who found their trucks misfiring after changing the plugs.
I decided that I didn't want to go through the process of elimination, etc. to hunt that down if it happened.
I simply reconnected the positive lead to the battery after reinstalling each COP. I then cranked the truck to see if it ran correctly. That way, one by one, I knew I had it all back together correctly.
I guess it may have slowed my job down a little, but it worked for a newbie such as I.
Just thought I'd toss that out. Perhaps someone will benefit from it.

 

1) How long did it take??
2)Where exactly is the COP? Picture if you can find one.
3)What was the cost of everything?
Oh, I have a 1999 5.4 V8 with 94,000 miles

 

Here's one for yuh - You have 8 -one per cilynder that's connected directly to the boot and plug -These motors are without plug wires.

https://www.f150online.com/galleries...580&anum=10939

 

jbrew, is it the one that says, "motocraft", or the other 2 yellow ones?
Are they hard to get to and towork on?

 

Yes the part named motorcraft is indeed just one of your vehicles coils.. The two yellow/orange components you refer to would be your injectors (2 of 8 pictured).

Hard 2 work on ? I don't know , not really that difficult - but I wouldn't trust a soul to this but myself , you don't want to skip anything . The first time you do it will take a little longer after that it's not bad.

Here I copied instructions given for the replacement of another members COP system - follow these steps.

Originally Posted by Galaxy
jbrew...how/where to you apply the dielectric grease to the spark plug boots? Just goop it up in there or just a little bit?? Rub a thin layer all over the outside of the boot too?? Thanks.
Just for an update...I haven't ordered the kit yet from Global because I have been away on business and really haven't needed the truck at all. I did contact them though and they will be on the way next week. Will definitely let you know if it works or not.


Hi!! Sorry haven't been on in awhile. I've investigated this question in great detail over time , I was confused once on how to apply dielectric grease.
Note, that I have done this awhile ago and since have put it to the test ,i.e. - driving in monsoon conditions, threw puddles, rivers and whatnot lol. Water is the ultimate enemy of your COP's system and will compromise even new one's if you fail to protect your investment. Here's watchado -

1. Pull the boots free from your new coils (if the springs come off , take them out of the boot and push them back onto the coil. Take the boot and with a long thin screwdriver, spread the grease along the shaft of your screwdriver and coat the inside of the boot with it well. (Don't worry about getting grease on the springs when re-installing the boots back onto your coils- this grease is conductive so don't worry about over doing it).

2. The seam at the top of the boot after reinstalled onto the COP needs to be coated with dielectric as-well.

3. Very Important finale step. Once your COP is installed and bolted down to your motor make sure to seal the gap between the top of the boot and cylinder head with dielectric grease. This prevents water from entering the chamber.

4. DON'T wash your motor ...EVER LOL

 

Thanks!
OK, another few stupid questions.
Do I replace the sparkplugs as well???
I also had autozone do a diagnostic. It said #1 misfiring...What do I do with that?Is that the same as the coil???