Sparkplugs
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New User
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Sparkplugs
looks like I need new COPS so I went to pull the sparkplugs out of my 2005 f250,5.4L,86kmi to see what shape they were in and they are very tight so much so I worry about stripping them should i put liquid wrench in the hole and try later or is there a special tool that is needed?
Posting Guru
Joined: Mar 2005
Posts: 2,060
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From: Burnsville, MN
I can't give you the specific answer you need but I'm going to give you feedback quickly so you don't proceed too hastily.
First, you're right, this is a special situation. There's no special tool, but there's a problem with the plug design and they can break off in the cylinder. So wait for one of the more knowlegible types to chime in before proceeding.
Welcome to the forums!
First, you're right, this is a special situation. There's no special tool, but there's a problem with the plug design and they can break off in the cylinder. So wait for one of the more knowlegible types to chime in before proceeding.
Welcome to the forums!
Senior User
Joined: Jan 2004
Posts: 294
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From: Michigan
Do some searching on this topic, plenty of info here and in the 2004 to 2008 F150 section. Their is a TSB on the plug removal for the 5.4l 3v engines. You need to get some nickel anti aeize to put on the new plugs. Champion makes a better designed replacement plug. The Motoercrafts have a bad habit of seperating and leaving the lower shell in the head. If that happens you need a special tool to remove the lower shell. If the tool will not get the shell out, the head will have to be removed. here's what I did when I went to change my plugs. I ram marvel Mystry Oil in every tank of gas for a month prior to removing them. Their is mint oil in it and it softens carbon. Every plug of mine came out very easy, to easy. You will put the anti-seize around the perifery of the lower shell of the new plugs. I hope I haven't scared you but proceed cautiously, and do some searching on here, their's alot of info on the topic.
Fleet Mechanic
Joined: Apr 2007
Posts: 1,433
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From: NH
Here is a copy of the TSB on the plug removal. As noted it can/could be a tough job with bad consequences or you might be one of the lucky ones. I had Ford do mine at 65k and they broke 4. If you research as noted and/or follow the TSB and all the recomended procedures, you might be ok.
http://www.wfservices.biz/TSB%20Ford...%20removal.pdf
http://www.wfservices.biz/TSB%20Ford...%20removal.pdf
Senior User
Joined: Jan 2004
Posts: 294
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From: Michigan
I put the Champions in my truck, and have over 20,000 miles on them and have had no problems with them so far.
Fleet Mechanic
Joined: Apr 2007
Posts: 1,433
Likes: 7
From: NH
The PZT1F's that i installed were a different design than the PZT1F's that i removed. The ones that were removed (old ones) were a 2 piece shell design. A couple that were broken in my instance broke at the shell split. The newer plugs that i installed were a one piece shell design and only welded at the thread base.
You think they would have applied another number to the plug or maybe add a suffix letter of some sort so as not to confuse the old design so people wouldn't maybe wind up with older ones that were still on the shelf but i guess that maybe would have only confused the applications.
You think they would have applied another number to the plug or maybe add a suffix letter of some sort so as not to confuse the old design so people wouldn't maybe wind up with older ones that were still on the shelf but i guess that maybe would have only confused the applications.
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Fleet Mechanic
Joined: Apr 2007
Posts: 1,433
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From: NH
I just did a test on the old plugs (as i saved them for refrence). Some may already be aware of this.
The lower shell piece of the old plug is i believe Stainless steel with the upper shell being just steel. Hence the need to crimp. I don't have the new plugs to check but i would like to think the whole shell is SS.
The lower shell piece of the old plug is i believe Stainless steel with the upper shell being just steel. Hence the need to crimp. I don't have the new plugs to check but i would like to think the whole shell is SS.
FTE Leadership Emeritus
Joined: Sep 2000
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From: Stephensville WI
Good to know on the Champions. Thanks for the information. I'll see if I can research the Autolites and find some information.
