Need some advice on spark plugs

Thread Tools
 
Search this Thread
 
Old Nov 22, 2010 | 09:47 PM
  #16  
jbrew's Avatar
Technical Article Contributor
Joined: Oct 2005
Posts: 25,641
Likes: 19
From: MI
The SP507 is the latest, as far as I know. They have been screwing around with heat ranges, but that's about it.
 
Reply
Old Nov 22, 2010 | 11:00 PM
  #17  
jethat's Avatar
Senior Member
Joined: Jun 2007
Posts: 5,522
Likes: 6
From: Utah
Originally Posted by 2004FX4offroad
Are you 2 serious? There is a ONE PIECE PLUG.....
Part number?
 
Reply
Old Nov 23, 2010 | 12:00 PM
  #18  
2004FX4offroad's Avatar
Junior Member
Joined: Nov 2010
Posts: 9
Likes: 0
I have the part numbers on my home computer, I am at work. There is a one piece, otherwise it would be ridiculous to put the same plug in with this known issue.

There is a TSB, not a recall on this issue, and since almost everyone with an 04-05 experienced breakage, the design was changed to avoid it.
 
Reply
Old Nov 23, 2010 | 12:25 PM
  #19  
Bluejay's Avatar
Global Moderator &
Senior Member
20 Year Member
Joined: Mar 2005
Posts: 26,080
Likes: 85
From: Burleson/Athens/Brownsboro, TX
Originally Posted by 2004FX4offroad
Are you 2 serious? There is a ONE PIECE PLUG.....
The only one piece by Motorcraft is for for mid 2008 and up. The boots on the plugs are brown rather than black. If there is a one piece, it is Champion, E3 or someother brand, not Motorcraft. You are very misinformed.
 
__________________
Jim
Reply
Old Nov 23, 2010 | 12:27 PM
  #20  
Bluejay's Avatar
Global Moderator &
Senior Member
20 Year Member
Joined: Mar 2005
Posts: 26,080
Likes: 85
From: Burleson/Athens/Brownsboro, TX
Originally Posted by 2004FX4offroad
I have the part numbers on my home computer, I am at work. There is a one piece, otherwise it would be ridiculous to put the same plug in with this known issue.

There is a TSB, not a recall on this issue, and since almost everyone with an 04-05 experienced breakage, the design was changed to avoid it.
There is a very large number that had no breakage, plus, if one breaks it's a minor deal in most cases. Just requires the Lisle tool. Mine all came out fine at 65,500. You really need to get your fact straight.
 
__________________
Jim
Reply
Old Nov 23, 2010 | 02:54 PM
  #21  
jbrew's Avatar
Technical Article Contributor
Joined: Oct 2005
Posts: 25,641
Likes: 19
From: MI
Here's the link 2004FX4offroad (I think it's the same guy ? ) gave on another site -

http://k-mansparts.com/items/f-150/i...507-detail.htm

So......
 
Reply
Old Nov 23, 2010 | 03:06 PM
  #22  
Bluejay's Avatar
Global Moderator &
Senior Member
20 Year Member
Joined: Mar 2005
Posts: 26,080
Likes: 85
From: Burleson/Athens/Brownsboro, TX
I don't see anywhere that it says those are one piece plugs. Plus, I'm pretty sure that is the part number for the replacement plug that came out in 2006 that is just a different heat range. If so, I bought them at my dealer for $10 each.
 
__________________
Jim
Reply
Old Nov 23, 2010 | 06:28 PM
  #23  
sam1947's Avatar
Senior Member
Joined: Jul 2007
Posts: 2,036
Likes: 2
From: Maine
The SP-507 is a two piece plug, just like the other Motorcraft plug ! I think they were around 7.50 at the dealership here
 

Last edited by sam1947; Nov 23, 2010 at 06:39 PM.
Reply
Old Nov 23, 2010 | 06:59 PM
  #24  
sam1947's Avatar
Senior Member
Joined: Jul 2007
Posts: 2,036
Likes: 2
From: Maine
Originally Posted by 2004FX4offroad
I've been visiting this site for years, and finally had to register when I saw this post.

Does anyone even know what this problem pertained to? How it has been fixed? And what you need to worry about?

From the posts, it seems as if most of you have heard something about it, but never actually took the time to look into the problem yourself. Just relying on what others have said.

Ford made a HORRIBLE mistake and with the new body style, starting in 04, introduced a 2 piece spark plug for the Triton 5.4L V8. This flawed design, led to the plug sticking in the head due to carbon buildup and when removed, had a tendency to break, leaving the threads in the head.

The shield..NOT the threads !!

Ford still recommended changing the plugs at 100k even with this known issue. Most are doing it around 75k-80k. I myself scheduled to get it done next week, I am at 77k and am already feeling the affects of bad plugs.

Ford now recommends changing at 60,000 mi


This problem affected 04-05 production F150s only with the 5.4. There have been a few cases of an 06 having this problem, but because old stock was used.

Ford redesigned these plugs, the updated plugs are a one piece design. Let me say that again. Ford redesigned these plugs, they are now a one piece design.-------NOT !!

If you went to do a plug change and receive a 2 piece plug, you have received dead stock. The new ones have a different part number. If you try to look up the old part number, it will come up invalid. fordparts.com, will only list the new part number anyway to avoid confusion.

The 5.4L was designed for the Motorcraft part, but people have found success in other brands, to each their own for that.

I only post this response, because it seems as though those who commented were not fully educated on this subject.
Talk about the one not being educated on the subject
 
Reply
Old Nov 23, 2010 | 07:28 PM
  #25  
JimAllen's Avatar
Senior Member
Joined: Mar 2009
Posts: 290
Likes: 0
From: Northwest Ohio
Oh well, let's lighten up on the guy. I'm sure his face is red enough by now. It woulda been funny if there really had been a new one piece plug that got by all of us. Whoosh! Woulda been at least half a dozen red faces at that point.
 
Reply
Old Nov 23, 2010 | 07:56 PM
  #26  
sam1947's Avatar
Senior Member
Joined: Jul 2007
Posts: 2,036
Likes: 2
From: Maine
Originally Posted by JimAllen
Oh well, let's lighten up on the guy. I'm sure his face is red enough by now. It woulda been funny if there really had been a new one piece plug that got by all of us. Whoosh! Woulda been at least half a dozen red faces at that point.
Yea! Jim, mine being one of them !!!
 
Reply
Old Nov 23, 2010 | 07:59 PM
  #27  
dozerdog's Avatar
Senior Member
Joined: Apr 2010
Posts: 118
Likes: 0
Getting back to the original question.......if it was ME, I would change the plugs for new ones and apply the anti-sieze NOW. Why take a chance? Sooner, (probably) the better.
 
Reply
Old Nov 23, 2010 | 08:11 PM
  #28  
MGDfan's Avatar
Senior Member
Joined: Feb 2004
Posts: 10,390
Likes: 10
Originally Posted by dozerdog
Getting back to the original question.......if it was ME, I would change the plugs for new ones and apply the anti-sieze NOW. Why take a chance? Sooner, (probably) the better.
^ This.


MGD
 
Reply
Old Nov 24, 2010 | 06:31 PM
  #29  
L-Wood's Avatar
Member
Joined: Jan 2004
Posts: 10
Likes: 0
From: Coastal Georgia
Don't know what to do 138,000 mile same plugs

I have a 2004 FX4 scab and have 138,000 hard driving miles, stop-n-go work truck, not highway miles. I love my truck but can't see spending the money to pull the heads to change spark plugs. Who is the best to take it to, or should I trade it. I would feel guilty selling it to some one knowing that the plugs are an issue. The truck still looks good but the tran and diff have had some issues also.
 

Last edited by L-Wood; Nov 24, 2010 at 07:09 PM.
Reply
Old Nov 24, 2010 | 06:44 PM
  #30  
2004FX4offroad's Avatar
Junior Member
Joined: Nov 2010
Posts: 9
Likes: 0
Well, I can certainly admit when I am wrong and now obviously is one of those times. I apologize for coming off like a moron. I was certainly given very bad and useless information by what I thought was a reliable source.

My face is red, I concede defeat. I hope there are no hard feelings fellas.
 
Reply



All times are GMT -4. The time now is 06:49 AM.