COP stuff

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Apr 4, 2013 | 09:10 PM

ford2go

Thread Starter

Cargo Master

Joined: Apr 2003

Posts: 3,476

Likes: 224

From: Frequently frozen MN

COP stuff

Disclaimer -- I've never owned a Ford with COPs. This is just some stuff that I ran across. COPs are discussed often enough so that I thought I'd pass it on.

This site claims to have some replacement boots that can extend the life of a COP.

MAGNECOR Race Wires - Ford 4.6/5.4 coil boots

This site talks about testing misfires and makes the point that many returned coils are actually good. Unfortunately, they use seem to use some specialized equipment for the tricky parts, but it's a little food for thought.

Coil-over plug misfire - Automotive Service Professional

read or ignore as you see fit,

hj

Apr 5, 2013 | 05:39 AM

tjc transport

i ain't rite

Joined: Mar 2005

Posts: 65,443

Likes: 5,516

From: Marlboro Mental Hospital.

very rarely do i replace a coil. 9 times out of 10 a new boot fixes the missfire.

Apr 5, 2013 | 06:13 AM

LMS Residential

Post Fiend

Joined: Mar 2009

Posts: 6,243

Likes: 2

From: Chicago and Mt Carroll IL

nice lesson hj, thanks.

Apr 6, 2013 | 07:38 AM

JWA

Fleet Owner

Joined: Aug 2010

Posts: 21,253

Likes: 1,656

From: Reynoldsburg, Ohio

Quote:

Originally Posted by tjc transport

very rarely do i replace a coil. 9 times out of 10 a new boot fixes the missfire.

Boots have repeatedly been the issue with many of the misfire problems encountered in the V10 & V8 forums.

I did swap out the OEM COP's for Granatelli's and within the first year one by one they began to fail, the boots not the problem at all. Oddly enough when one would fail it was replaced with a new boot and a removed/saved OEM COP, never another misfire or CEL at all.

I'm sold to first check the boots and plug but when necessary use nothing but Motorcraft or whatever brand Ford sells as their own---270+ K miles still going strong!

Thanks for the links---great reading!