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2014 F-150 5.0 Spark Plug Change #4454673
07/09/17 07:45 PM
07/09/17 07:45 PM
Joined: Dec 2009
Posts: 484
Ohio
radtech91 Offline OP
radtech91  Offline OP
Joined: Dec 2009
Posts: 484
Ohio
So I finally found out why I have had a vibration and shutter in my truck, took it to a different Ford dealer and they said it had a random misfire and they said to change the plugs out. They wanted $244 to do the change, I said no and that I would do it myself. Looks like there is plenty of room and should be simple.

I tried to find the SP-519 plugs that my manual says to use, but they are out of stock just about everywhere. After some research I see that they were replaced by SP-584. I picked up 8 at Autozone and I'm going to do the change tomorrow afternoon.

What I need to know is what is the torque spec for the plugs? I can't find that anywhere.

I have anti-seize but I'm probably going to pass on that.

Also, does anyone have any tips or suggestions that would speed up the change?

Thanks


2018 Mazda CX-5 Grand Touring AWD

Previously Owned:
2014 Ford F-150 XLT 4WD
2010 Honda Ridgeline RT 4WD
2009 Honda CR-V EX 4WD
2007 Honda Element EX 4WD
Re: 2014 F-150 5.0 Spark Plug Change [Re: radtech91] #4454682
07/09/17 08:02 PM
07/09/17 08:02 PM
Joined: Sep 2016
Posts: 1,418
Minnesota
bioburner Offline
bioburner  Offline
Joined: Sep 2016
Posts: 1,418
Minnesota
I would like to know how it goes. I think that's the same engine they put in the Mustang. Surprised the engine monitor light didn't come on.

I would just call your dealer and ask for the shop manager. I have found that if they have sold or serviced your vehicle they are not to put out by you asking for some info. Mine even lent me the tool to remove the rear wheel axle lock nut assembly.

Sad to have seen them move due to high taxes. Oh well, one of their mechanics put up his own shingle and is cheaper, close and willing to help without always wanting your contents of your bank account.

Last edited by bioburner; 07/09/17 08:07 PM.


97 Ford E350 D,99 F350 dually D
13 Scion Xb
12 Ford Transit Connect
06 Nissan Xterra
03 K1200 BMW
07 Kawasaki KLR650
13 Madass
Re: 2014 F-150 5.0 Spark Plug Change [Re: radtech91] #4454691
07/09/17 08:14 PM
07/09/17 08:14 PM
Joined: Dec 2013
Posts: 2,432
Fort Worth, Texas
clinebarger Offline
clinebarger  Offline
Joined: Dec 2013
Posts: 2,432
Fort Worth, Texas
14 newton meters or 124 inch pounds.


2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/U341E
2000 Toyota Avalon 1MZ-FE/A541E
Re: 2014 F-150 5.0 Spark Plug Change [Re: clinebarger] #4454747
07/09/17 09:03 PM
07/09/17 09:03 PM
Joined: Dec 2009
Posts: 484
Ohio
radtech91 Offline OP
radtech91  Offline OP
Joined: Dec 2009
Posts: 484
Ohio
Originally Posted By: clinebarger
14 newton meters or 124 inch pounds.


Wow, only like 10 foot pounds?


2018 Mazda CX-5 Grand Touring AWD

Previously Owned:
2014 Ford F-150 XLT 4WD
2010 Honda Ridgeline RT 4WD
2009 Honda CR-V EX 4WD
2007 Honda Element EX 4WD
Re: 2014 F-150 5.0 Spark Plug Change [Re: radtech91] #4454759
07/09/17 09:16 PM
07/09/17 09:16 PM
Joined: Jan 2010
Posts: 150
Olathe, KS
CARJ Offline
CARJ  Offline
Joined: Jan 2010
Posts: 150
Olathe, KS
You don't want to be cranking down on spark plugs.


2004 Toyota 4Runner | 180k | PYB 5w-30, PH3614
2012 VW Passat | 85k | PPHM/Redline 5w-30, XG9911
Re: 2014 F-150 5.0 Spark Plug Change [Re: radtech91] #4454775
07/09/17 09:27 PM
07/09/17 09:27 PM
Joined: Oct 2005
Posts: 7,094
Colorado
Kuato Offline
Kuato  Offline
Joined: Oct 2005
Posts: 7,094
Colorado
Subbed....need to change mine in about 20k miles.


Thick vs Thin test: 15k / 43k miles complete
Re: 2014 F-150 5.0 Spark Plug Change [Re: radtech91] #4454831
07/09/17 10:22 PM
07/09/17 10:22 PM
Joined: Feb 2011
Posts: 1,260
Golden Meadow, LA
mobilaltima Offline
mobilaltima  Offline
Joined: Feb 2011
Posts: 1,260
Golden Meadow, LA
Glad to see you're torquing them. Do it the right way or no way I say. How is the power and fuel economy with the 5.0?


2006 2500 Dodge 5.9 Cummins Mobil Delvac 15W40, Fleetguard Stratapore 90k miles
Early '99 F250 ECLB 7.3 Stroker, 223k miles
Re: 2014 F-150 5.0 Spark Plug Change [Re: radtech91] #4454879
07/10/17 12:27 AM
07/10/17 12:27 AM
Joined: Jun 2005
Posts: 11,606
Santa Barbara, CA
bdcardinal Online content
bdcardinal  Online Content
Joined: Jun 2005
Posts: 11,606
Santa Barbara, CA
The correct replacement is SP-548, not SP-584. The spark plugs on a 5.0L Coyote are super easy to change. I probably spent longer trying to undo the electrical connectors on the coils than I did the whole rest of the job. I did the plugs on my Mustang at 15K just because I was curious. They were pretty thrashed. Mileage didn't really improve, nor did the random miss at idle. It takes a lot to set a MIL for a misfire on a Ford, it will show in Mode 6 though.

I know it is a different application, but the Mustang gets 14.8 mpg average lifetime. Mine is a Track Pack with 3.73 gears.


2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter
NRA Benefactor Member
Opinions expressed are my own.
Re: 2014 F-150 5.0 Spark Plug Change [Re: mobilaltima] #4454881
07/10/17 12:40 AM
07/10/17 12:40 AM
Joined: Dec 2009
Posts: 484
Ohio
radtech91 Offline OP
radtech91  Offline OP
Joined: Dec 2009
Posts: 484
Ohio
Originally Posted By: bdcardinal
The correct replacement is SP-548, not SP-584. The spark plugs on a 5.0L Coyote are super easy to change. I probably spent longer trying to undo the electrical connectors on the coils than I did the whole rest of the job. I did the plugs on my Mustang at 15K just because I was curious. They were pretty thrashed. Mileage didn't really improve, nor did the random miss at idle. It takes a lot to set a MIL for a misfire on a Ford, it will show in Mode 6 though.

I know it is a different application, but the Mustang gets 14.8 mpg average lifetime. Mine is a Track Pack with 3.73 gears.


Thanks I typed that part number wrong. I read about those red connectors being a pain. Did you use anti-seize on yours? I'm thinking I'm probably not going to.
I was surprised that I didn't get a code for the misfire.

Originally Posted By: mobilaltima
Glad to see you're torquing them. Do it the right way or no way I say. How is the power and fuel economy with the 5.0?


I really like it. It has been a great truck so far. Using fuelly for 19031 miles my average has been 17 mpg with a best of 19.3. The 5.0 sound so good, really like it.


2018 Mazda CX-5 Grand Touring AWD

Previously Owned:
2014 Ford F-150 XLT 4WD
2010 Honda Ridgeline RT 4WD
2009 Honda CR-V EX 4WD
2007 Honda Element EX 4WD
Re: 2014 F-150 5.0 Spark Plug Change [Re: radtech91] #4454972
07/10/17 06:04 AM
07/10/17 06:04 AM
Joined: Apr 2008
Posts: 12,976
Onondaga County
Miller88 Online content
Miller88  Online Content
Joined: Apr 2008
Posts: 12,976
Onondaga County
Originally Posted By: radtech91
Originally Posted By: clinebarger
14 newton meters or 124 inch pounds.


Wow, only like 10 foot pounds?


8 foot pounds on my Duratec Ford I4.


18 Forester 2.5I 6M
00 Jeep Cherokee
01 Ford F-350 XL 4x4 5M
Re: 2014 F-150 5.0 Spark Plug Change [Re: radtech91] #4455070
07/10/17 08:20 AM
07/10/17 08:20 AM
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
If those are gasketed plug, you do NOT want to torque them - just tighten until the gasket is crushed. If chamfered seat with no gasket, torque them. Don't over apply Si to the ig coil boots. That will cause a misfire. Just a little wipe with a q-tip or similar. Keep all high tension component dirt and grime free. It's a white glove job to keep misfire counts low. No, Really.

Always had all kinds of iggy problem in fords since the late 60's. You should see the Christmas tree show my 428 CJ motor made in humid weather. My 2001 Stang Bullit had iggy problems.

Me and Fords = forget it.


That grip out of the way, its likely the problem has been caused by poor fuel causing bad injector spray pattern.

Last edited by ARCOgraphite; 07/10/17 08:22 AM.

2014 Nissan Rogue S CVT, OC#10 47272mi-QSUD10W30+5w20 Toughguard Filter; '17 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: 2014 F-150 5.0 Spark Plug Change [Re: radtech91] #4455131
07/10/17 09:11 AM
07/10/17 09:11 AM
Joined: Jul 2003
Posts: 2,422
MN
tmorris1 Offline
tmorris1  Offline
Joined: Jul 2003
Posts: 2,422
MN
I don't think you are supposed to use anti-seize. When I did my Focus they said that the Motorcraft plugs have a coating on the threads already and the anti-seize will mess up the torque settings. Torque settings were very low and similar for the Focus. Tapered plug going into aluminum head. I have the same engine and need to do mine before winter. I am at 87k on my 2012 5.0 F-150. It looks easy and want to get it done before it is below zero.

Re: 2014 F-150 5.0 Spark Plug Change [Re: radtech91] #4455409
07/10/17 02:41 PM
07/10/17 02:41 PM
Joined: Dec 2009
Posts: 484
Ohio
radtech91 Offline OP
radtech91  Offline OP
Joined: Dec 2009
Posts: 484
Ohio
All done, Truck runs amazing now. Only did a short trip but the power is back and the shudder is gone. I'll see how it goes on my way to work tonight.

Very easy job. Took me 1.5 hours from start to clean up. I did end up breaking 2 of those red clips. The rest moved easily. I used a tiny bit of the dielectric grease in the boots with a q-tip. I torqued the new plugs at 12 foot pounds. And I also made sure they were gapped at .049 to .05. I did NOT use any anti-seize. From everything I read you don't need it on the Motorcraft ones.

The old plugs were pretty bad. The drivers side were all gapped bigger than .06 and the passenger side were all between 0.55 and 0.6.


2018 Mazda CX-5 Grand Touring AWD

Previously Owned:
2014 Ford F-150 XLT 4WD
2010 Honda Ridgeline RT 4WD
2009 Honda CR-V EX 4WD
2007 Honda Element EX 4WD
Re: 2014 F-150 5.0 Spark Plug Change [Re: radtech91] #4455541
07/10/17 05:18 PM
07/10/17 05:18 PM
Joined: Jun 2011
Posts: 1,802
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,802
Crawfordville FL
Wow, that's a big gap.


2010 Ford Fusion SE 3.0L V6, 181 miles M1 HM 10w-30
Re: 2014 F-150 5.0 Spark Plug Change [Re: radtech91] #4455547
07/10/17 05:23 PM
07/10/17 05:23 PM
Joined: Dec 2009
Posts: 484
Ohio
radtech91 Offline OP
radtech91  Offline OP
Joined: Dec 2009
Posts: 484
Ohio
Originally Posted By: radtech91
....And I also made sure they were gapped at .049 to .05. I did NOT use any anti-seize. From everything I read you don't need it on the Motorcraft ones.

The old plugs were pretty bad. The drivers side were all gapped bigger than .06 and the passenger side were all between 0.55 and 0.6.


Sorry those last two were supposed to be .055 and .06. Was typing too quick.


2018 Mazda CX-5 Grand Touring AWD

Previously Owned:
2014 Ford F-150 XLT 4WD
2010 Honda Ridgeline RT 4WD
2009 Honda CR-V EX 4WD
2007 Honda Element EX 4WD
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