Wookie has you covered, you'll be very happy afterwards.

I would only suggest also adding di-electric grease to the inside of the plug boots before you put them back on.

 

I've been fighting a shudder problem with what seems like a misfire without any codes thrown...looked into a ton of stuff like condensation problems and oil catch cans...etc. No fix, finally I checked my plugs and found multiple plugs cracked, changing them tonight, hope that fixes my issues. Be a good thing to check on for anyone having shuddering with no codes thrown.

 

Very likely you're cracked plugs. They seem to be very sensitive to torque. Also make sure you are using a proper plug socket with the rubber protector in it. Sometimes if you even put side pressure on the socket while tightening, it can crack a plug.

good luck!

 

^^^ don't cheap out and skip the boots! Rumor has it a new TSB is coming out to cover them. They might fall under the emissions warranty so their covered up to 100k.

 

Emissions Defect Warranty:

— 8 years or 80,000 miles (whichever occurs first) for catalytic
converters, electronic engine control unit (ECU), transmission control
module (TCM), and any other onboard emissions diagnostic module.
— 3 years or 36,000 miles (whichever occurs first) for all other
covered parts.

Emissions Performance Warranty:

— 8 years or 80,000 miles (whichever occurs first) for catalytic
converter, electronic emission control unit (ECU), transmission control
module (TCM), and any other onboard emissions diagnostic module
— 2 years or 24,000 miles (whichever occurs first) for all other
covered parts.

Boots would not be covered under the 8/80 emissions defect or performance warranty. If anything, they may launch a customer satisfaction program like they did for the 05 fuel injectors and recently, the Ecoboost vacuum pump.

 

It's TSB-14-0180


Engine Misfire Symptoms Accompanied by Diagnostic Trouble Codes (DTCs) P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 – 2011-2013 Ford F-150

TSB 14-0180
3.5L GTDI – ENGINE IGNITION MISFIRE – BUILT ON OR BEFORE 6/15/2013

The article supersedes TSB 14-0160 to update the base warranty causal part number.

ISSUE:

Some 2011-2013 F-150 vehicles built on or before 6/15/2013 and equipped with a 3.5L Gasoline Turbocharged Direct Injection (GTDI) engine may exhibit various engine misfire symptoms accompanied by diagnostic trouble codes (DTCs) P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 stored in the powertrain control module (PCM).


ACTION:

Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

Does normal diagnosis in the Powertrain Control/Emissions Diagnosis (PC/ED) manual lead to spark plug inspection?
Yes – proceed to step 2.
No – this article does not apply. Continue with normal diagnosis.

Remove the spark plug from the affected cylinder. Refer to Workshop Manual (WSM), Section 303-07.
Inspect the spark plug for signs of carbon tracking. Is carbon tracking evident? (Figures 1 and 2)

Figure 1 - 14-0180
Figure 1 – 14-0180

Figure 2 - 14-0180
Figure 2 – 14-0180

Yes – replace all six spark plugs and spark plug coil boots. Refer to WSM, Section 303-07.
No – this article does not apply. Refer to PC/ED manual for normal diagnosis.
PART NUMBER PART NAME
BL3Z-12A402-A Coil Boot (Req 6)
CYFS-12-YT3 Spark Plug (Req 6)

XG-3-A Motorcraft® Silicone Brake Caliper Grease and Dielectric Compound


WARRANTY STATUS
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage.

 

Okay - which exact warranty? 3/36 bumper to bumper, 5/60 powertrain, 2/24 emissions performance, 3/36 emissions defect, or 8/80 emissions? I don't see where that would qualify under the 8/80, it's not "catalytic converters, electronic engine control unit (ECU), transmission control module (TCM), and any other onboard emissions diagnostic module".

 

Yeah you are right, I tried to get away without using the proper socket and I paid the price about 8k miles later started having issues. Replaced the plugs last night with proper tooling (and more gentle torqueing ) Seems to of eliminated my shudder...but now have something going on with my wastegates or bov that I need to troubleshoot

 

Ford F150 3.5L V6 Ecoboost Misfires: Spark Plug Replacement NEW GAP ON PLUGS!
Video changing your spark plugs. also this too.
2013-2014 Ford F150 3.5L Ecoboost New Misfire TSB! TSB 14-0017 video
http://safeshare.tv/v/ss56d43160178a0