Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 2004 - 2008 F150
Sign in using an external account
Register Forgot Password?


2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 or 4.2 V6 engine
SPONSORED BY:
Click HereAdvertisement

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 08-18-2013, 11:38 AM
capttwb capttwb is offline
New User
 
Join Date: Dec 2012
Posts: 11
capttwb is starting off with a positive reputation.
newer 5.4 spark plug problems

I've just heard the late 5.4 engines are having a problem with their spark plugs welding themselves to the aluminum heads. Anyone know of a way to prevent this? How much does a Ford dealer usually charge to replace 5.4 engine spark plugs? I heard it is real expensive.
Reply With Quote
  #2  
Old 08-18-2013, 12:03 PM
Road Ranger's Avatar
Road Ranger Road Ranger is offline
New User
 
Join Date: Jun 2013
Location: West Kelowna BC
Posts: 8
Road Ranger is starting off with a positive reputation.
I'm surprised no one has commented this as I gather it's a potentially serious issue if they have to be drilled out (by removing the cab?!)....or maybe I'm not using this forum properly and have missed the replies to this thread. Anyways, I bought my '04 F-150 5.4L in July '11 and only later learned about this standing issue with those engines. I understand you should remove and service the plugs every 50Kms/30Mi. Everything went well when I had mine serviced last year. My truck now has 176,000 kms on it and I'll be checking/replacing the plugs again at the 200,000 Km mark unless I learn otherwise before then. HTH.
Reply With Quote
  #3  
Old 08-18-2013, 12:22 PM
capttwb capttwb is offline
New User
 
Join Date: Dec 2012
Posts: 11
capttwb is starting off with a positive reputation.
Quote:
Originally Posted by Road Ranger View Post
I'm surprised no one has commented this as I gather it's a potentially serious issue if they have to be drilled out (by removing the cab?!)....or maybe I'm not using this forum properly and have missed the replies to this thread. Anyways, I bought my '04 F-150 5.4L in July '11 and only later learned about this standing issue with those engines. I understand you should remove and service the plugs every 50Kms/30Mi. Everything went well when I had mine serviced last year. My truck now has 176,000 kms on it and I'll be checking/replacing the plugs again at the 200,000 Km mark unless I learn otherwise before then. HTH.
Thanks for the info. Road Ranger. Did you change your plugs yourself or did your dealer do it?
Reply With Quote
  #4  
Old 08-18-2013, 12:51 PM
Road Ranger's Avatar
Road Ranger Road Ranger is offline
New User
 
Join Date: Jun 2013
Location: West Kelowna BC
Posts: 8
Road Ranger is starting off with a positive reputation.
Well capttwb, I had the dealer do it because of that stomach-sinking feeling when I break something and have to do the job twice and for twice as long! Unfortunately, I don't remember how much that cost because there were two or three items done during the same service visit. I've been told that it's hellish expensive if one of those plugs breaks, something in the $1,500 range?
Reply With Quote
  #5  
Old 08-18-2013, 01:00 PM
canstacker canstacker is offline
Senior User
 
Join Date: Sep 2006
Posts: 163
canstacker is starting off with a positive reputation.
Do a search, this has been covered many times. There is a tool that can remove most broken plugs. The new plugs are one piece and don't break in two. 04-07 are the problem years.
Reply With Quote
  #6  
Old 08-18-2013, 01:56 PM
tdbudman tdbudman is offline
Freshman User
 
Join Date: Jul 2003
Location: S.D. CA.
Posts: 46
tdbudman is starting off with a positive reputation.
Quote:
Originally Posted by canstacker View Post
Do a search, this has been covered many times. There is a tool that can remove most broken plugs. The new plugs are one piece and don't break in two. 04-07 are the problem years.
There's a TSB out on this too. Make sure you warm the engine SLIGHTLY before you remove the plugs. If they don't break loose under "normal" tension hit them with some blast off or comparable, (Ford makes one for this) and let it do its work. Look at the bright side. If you snap them off and worst case scenario you have to remove the heads.....You'll have new head gaskets!
__________________
04 F150 Supercrew FX4 with all the good stuff.
71 F250 Camper Special, 390cid, 10:1, cam, Cobra jet hds, Edlebrock perf. intake, headman hdrs, dynomax super turbo dual exhaust.
Reply With Quote
  #7  
Old 08-18-2013, 02:44 PM
Road Ranger's Avatar
Road Ranger Road Ranger is offline
New User
 
Join Date: Jun 2013
Location: West Kelowna BC
Posts: 8
Road Ranger is starting off with a positive reputation.
Awriiiight !!! Now I feel better about any potential spark plug issues. Thanks, guys.
Reply With Quote
  #8  
Old 08-21-2013, 02:43 AM
jeremy1 jeremy1 is offline
New User
 
Join Date: Aug 2013
Posts: 18
jeremy1 is starting off with a positive reputation.
I did mine at 195000 Kms and every plug broke. I knew of this problem and bought the Lisle tool kit ahead of time. It takes about 10 minutes per plug to extract the broken pieces. I sprayed the plugs with carb cleaner and let it sit 24 hrs. You want to make sure that you don't use too much torque removing the plug. It is possible to damage the aluminum threads. Also, Aluminum is softer hot and I wouldn't do it with the engine hot

There are a handful of YouTube videos if you are interested
Reply With Quote
  #9  
Old 08-21-2013, 06:03 AM
capttwb capttwb is offline
New User
 
Join Date: Dec 2012
Posts: 11
capttwb is starting off with a positive reputation.
Quote:
Originally Posted by jeremy1 View Post
I did mine at 195000 Kms and every plug broke. I knew of this problem and bought the Lisle tool kit ahead of time. It takes about 10 minutes per plug to extract the broken pieces. I sprayed the plugs with carb cleaner and let it sit 24 hrs. You want to make sure that you don't use too much torque removing the plug. It is possible to damage the aluminum threads. Also, Aluminum is softer hot and I wouldn't do it with the engine hot

There are a handful of YouTube videos if you are interested
Thanks Jeremy.
Reply With Quote
  #10  
Old 08-21-2013, 06:05 AM
capttwb capttwb is offline
New User
 
Join Date: Dec 2012
Posts: 11
capttwb is starting off with a positive reputation.
So how about the 4.6 engine? (2004-2007) Same problem?
Reply With Quote
  #11  
Old 08-21-2013, 12:44 PM
canstacker canstacker is offline
Senior User
 
Join Date: Sep 2006
Posts: 163
canstacker is starting off with a positive reputation.
4.6 engines do not have the plug problems, only the 5.4
Reply With Quote
  #12  
Old 08-21-2013, 01:44 PM
jeremy1 jeremy1 is offline
New User
 
Join Date: Aug 2013
Posts: 18
jeremy1 is starting off with a positive reputation.
Quote:
Originally Posted by canstacker View Post
4.6 engines do not have the plug problems, only the 5.4
My understanding is that it is the 3 valve engines and the 5.4 is more of a problem than the 4.6
Reply With Quote
Old 08-21-2013, 01:44 PM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
5.4L spark plugs gogreenwave Expedition & Navigator 11 02-27-2014 10:53 AM
Spark Plugs makthenif Expedition & Navigator 8 05-02-2011 07:09 AM
Spark plugs blown out of engine block? maldbwmjr Expedition & Navigator 56 03-07-2011 10:22 PM
How to avoid spark plug problems twdn80210 Modular V8 (4.6L, 5.4L) 4 07-27-2010 12:31 AM
5.4L spark plug problem chperry Modular V8 (4.6L, 5.4L) 10 11-26-2003 11:40 PM


Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 2004 - 2008 F150

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »





All times are GMT -5. The time now is 02:15 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup