Ignition coil boot separated

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Sep 29, 2021 | 01:26 PM

JimmyCornCrack

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Ignition coil boot separated

Hey folks- new-timer here, and am in the middle of this very grueling v-10 spark plug change on an E-350 Super Duty.

The last coil I was removing came apart. Go figure. I got the lower piece out. It looks like it just presses back together just fine. Nothing broken or damaged. Is that ok to do? Just put it back together and reinstall?

Thanks!

Sep 29, 2021 | 02:46 PM

RazorsEDGE

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It's ok, but you should replace the coil boots when you do spark plugs anyway.

Sep 29, 2021 | 03:17 PM

JimmyCornCrack

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Quote:

Originally Posted by RazorsEDGE

It's ok, but you should replace the coil boots when you do spark plugs anyway.

Thanks! Just the boots, or the whole coil?

Sep 29, 2021 | 03:23 PM

RazorsEDGE

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Just the boots.

Sep 30, 2021 | 04:36 AM

JWA

Fleet Owner

Joined: Aug 2010

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From: Reynoldsburg, Ohio

You'll want to use just a dab of dielectric grease at the spark plug end---this helps seal moisture out of that area. I use just a bit inside the upper end fitting around the COP body as well as inside the wiring harness connector.

Oct 3, 2021 | 12:13 AM

maples01

Lead Driver

Joined: May 2004

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From: Maryville

Yes grease them, mine had 2 coils fail, upon removal they appeared to have collected water in the well, likely shorting them.

Oct 8, 2021 | 02:20 PM

FnESeries

Cross-Country

Joined: Oct 2021

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Wow, I just pulled a few coils to check the condition of the plugs on this new to me 2006 5.4l, I was surprised to see debris around the upper part of the coil boot (outside of the bore) how does stuff get up in here? Is there a route for small leaves/pine needles to fall this deep or does it all dust up at road speed from below? and my 'Wow' was at hearing that water worked its way up there!