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Ford Coil on Plug - removal tips to prevent damage #4475327
07/31/17 07:50 AM
07/31/17 07:50 AM
Joined: Oct 2014
Posts: 1,074
SW Ontario Canada
KGMtech Offline OP
KGMtech  Offline OP
Joined: Oct 2014
Posts: 1,074
SW Ontario Canada
Hi,

Saturday I tried to replace the plugs on the 2009 Flex with 3.5L V6, pulled the coil out of # 1 and the lower rubber piece was left remaining on the plug - I suspect the dealer tech that did the last change didn't use any dielectric grease on the rubber boot and now it welded itself to the porcelain. Tried to get that rubber piece (Motorcraft WR6135) to come off the plug in one piece, no such luck, pieces chunked off with use of my long handled needle nose pliers.

I stopped the spark plug project. These rubber parts are $ 9 CAD each. Is there a better way to remove these without damaging? Not a lot of room down at the bottom of the hole..

Thanks again if you can offer some advice!


2017.5 Nissan Rogue SV FWD
2013 Nissan Maxima SV
2009 Ford Flex SEL FWD
1984 Yamaha XJ750RL
Re: Ford Coil on Plug - removal tips to prevent damage [Re: KGMtech] #4475339
07/31/17 08:00 AM
07/31/17 08:00 AM
Joined: Sep 2011
Posts: 3,362
Somewhere
itguy08 Offline
itguy08  Offline
Joined: Sep 2011
Posts: 3,362
Somewhere
I did the sparkplugs at 78k on my SHO (Same design as the NA 3.5) and tore a couple from the factory. So I don't think they used dielectric either. Or it dried up. What I did was get them all out and went to the dealer to replace the boots I tore. I think I only tore 1 or 2 of them so it may get better as things go along.

Only thing I could think would be to try to get some WD40 down there but you would have to then clean the boot really good on reinstallation.

Re: Ford Coil on Plug - removal tips to prevent damage [Re: KGMtech] #4475505
07/31/17 11:01 AM
07/31/17 11:01 AM
Joined: Dec 2006
Posts: 75
saginaw michigan
saginawmale50 Offline
saginawmale50  Offline
Joined: Dec 2006
Posts: 75
saginaw michigan
soak with pb blaster for a few days

Re: Ford Coil on Plug - removal tips to prevent damage [Re: KGMtech] #4475715
07/31/17 02:40 PM
07/31/17 02:40 PM
Joined: Dec 2016
Posts: 7,132
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,132
Waco, TX
Any way to get compressed air in there?

It'll inflate the rubber like a balloon so it pops off easily without tearing


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Ford Coil on Plug - removal tips to prevent damage [Re: KGMtech] #4475845
07/31/17 05:31 PM
07/31/17 05:31 PM
Joined: Jul 2011
Posts: 965
Missouri
cb_13 Offline
cb_13  Offline
Joined: Jul 2011
Posts: 965
Missouri
You should replace the coil boots during a tune up. It's a piece of rubber that's been through 100k miles of heat cycles.

I always price them out for a tune up. Most customers refuse them assuming I'm trying to scam them but I keep doing it!

Re: Ford Coil on Plug - removal tips to prevent damage [Re: saginawmale50] #4476012
07/31/17 08:00 PM
07/31/17 08:00 PM
Joined: Mar 2010
Posts: 5,368
Iowa
The_Eric Offline
The_Eric  Offline
Joined: Mar 2010
Posts: 5,368
Iowa
Originally Posted By: saginawmale50
soak with pb blaster for a few days


Bad idea. PB is petroleum based and will make the boots swell so they won't hold in the high voltage.


2005 Lincoln Aviator 4.6 DOHC
2000 Honda Accord 2.3
2001 Hyundai Elantra 2.0
1979 Ford F-150 351M
Re: Ford Coil on Plug - removal tips to prevent damage [Re: cb_13] #4476019
07/31/17 08:06 PM
07/31/17 08:06 PM
Joined: Mar 2010
Posts: 5,368
Iowa
The_Eric Offline
The_Eric  Offline
Joined: Mar 2010
Posts: 5,368
Iowa
Originally Posted By: cb_13
You should replace the coil boots during a tune up. It's a piece of rubber that's been through 100k miles of heat cycles.

I always price them out for a tune up. Most customers refuse them assuming I'm trying to scam them but I keep doing it!


I totally agree and do the same thing with my customers.

Think of it this way- people don't typically run plug wires longer than the typical 100k plus spark plugs, so why run the boot again?


2005 Lincoln Aviator 4.6 DOHC
2000 Honda Accord 2.3
2001 Hyundai Elantra 2.0
1979 Ford F-150 351M
Re: Ford Coil on Plug - removal tips to prevent damage [Re: KGMtech] #4476351
08/01/17 08:41 AM
08/01/17 08:41 AM
Joined: Oct 2014
Posts: 1,074
SW Ontario Canada
KGMtech Offline OP
KGMtech  Offline OP
Joined: Oct 2014
Posts: 1,074
SW Ontario Canada
UPDATE:

I purchased 6pc of the boots from the local Ford dealer, with the understanding that if I didn't need all 6 they could be returned.

I made myself a pick from a piece of coat hanger, about 7 inches long with a 3/16" bend on the end. Fit down the plug hole and slide past the stuck boot, twist and pull up. Couple of attempts and the boot comes out without damage. I needed 2pc of the rubber boots, 4 will be returned. The original 4 undamaged rubber boots all looked in excellent condition, very pliable, no cracks, no discolouration after 168,000km.

New plugs installed with a blob of dielectric grease applied inside the boots, some anti-seize on the threads and job done in about 1.5 hours including the removal of the intake manifold. Now Flex is set for another 5 years :o)


2017.5 Nissan Rogue SV FWD
2013 Nissan Maxima SV
2009 Ford Flex SEL FWD
1984 Yamaha XJ750RL
Re: Ford Coil on Plug - removal tips to prevent damage [Re: KGMtech] #4476886
08/01/17 06:59 PM
08/01/17 06:59 PM
Joined: Jun 2011
Posts: 1,803
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,803
Crawfordville FL
I did plugs on my fusion around 120k. They all came off no trouble, they were lubed from the factory but I put some dielectric grease in there anyway


2010 Ford Fusion SE 3.0L V6, 181 miles M1 HM 10w-30
Re: Ford Coil on Plug - removal tips to prevent damage [Re: KGMtech] #4476909
08/01/17 07:19 PM
08/01/17 07:19 PM
Joined: Jun 2005
Posts: 11,612
Santa Barbara, CA
bdcardinal Offline
bdcardinal  Offline
Joined: Jun 2005
Posts: 11,612
Santa Barbara, CA
I did the ones on my Mustang early just to see how they were. I always twist the coils off the plugs.


2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter
NRA Benefactor Member
Opinions expressed are my own.
Re: Ford Coil on Plug - removal tips to prevent damage [Re: KGMtech] #4479018
08/04/17 12:20 PM
08/04/17 12:20 PM
Joined: Nov 2008
Posts: 132
FL
9050lx Offline
9050lx  Offline
Joined: Nov 2008
Posts: 132
FL
Just changed Motorcraft Platinum plugs on a 2003 4.6L. 198,000 miles,2nd time plugs have been changed. gaps at.060 grown from .054.Boots look perfect.WD40 spray,twist and they come right out.Cylinder #4 spark plug is always the tightest,lol.


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