Reason for spitting plugs found
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From: Broussard USA
Reason for spitting plugs found
I read an article on this in a car mag. It seams Ford admitted to not tightning the plugs on a few trucks.
I spoke with a dealer and he said that he had also been informed of this.
So for you guys wanting to change plugs I would say go for it, it your truck has not spit plugs yet then check to se if they are tight.
I spoke with a dealer and he said that he had also been informed of this.
So for you guys wanting to change plugs I would say go for it, it your truck has not spit plugs yet then check to se if they are tight.
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Joined: Mar 2002
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From: Austin, TX
Reason for spitting plugs found
I think it's a problem with the head design, my old F150 with the 4.6 had a plug that would loosen up on it all the time. I had to keep an extra socket in the truck to intermittantly tighten it up.
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From: Oklahoma
Reason for spitting plugs found
Ive never heard of that explanation, sounds a little fishy to me. If that were the case, then why would the engines blow the same plug AFTER the owner changed the plugs, making sure they were tight? No, the most reasonable explanation I have heard (and this comes straight from a ford tech) is the routing of the heater pipe going right over the plug in question. Condensation leaks down on this plug and over time, sets up corrossion. If you will look at a set of 80,000 mile plugs that have just come out of a V10 in question, you will note that one certain plug has some rust around the base where it goes in the head. None of the others will have it. I've never had a problem with the plugs in my V10, but I have seen several that have, and it is always the same plug, and always has had the corrossion showing in the same place. Ford could have remedied this problem long ago, but apparently they dont see it as a major big deal (go figure). The heater pipe is routed differently on the 2001 and up V10 trucks, and I dont think any of these year models has this problem. At least not that I have heard of.
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From: Roswell USA
Reason for spitting plugs found
I thought it was the heads design. In later years the spark plug hole is thicker to include more threads. In early models the heads only have like 4 or 5 threads holding the spark plug in place. I thought I saw pics one time comparing the differences in the two designs.
How do they say it: dont believe everything u read and only half of what u hear.
How do they say it: dont believe everything u read and only half of what u hear.
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From: Oklahoma
Reason for spitting plugs found
Tank:
you are correct that there is a difference in the plug hole depth and threading between the V10 heads, and this could very well be a contributing factor to the overall problem. A bit of corrosion, coupled with a shallow plug hole with only a few threads to hold the plug in the first place... definitely food for thought.
you are correct that there is a difference in the plug hole depth and threading between the V10 heads, and this could very well be a contributing factor to the overall problem. A bit of corrosion, coupled with a shallow plug hole with only a few threads to hold the plug in the first place... definitely food for thought.
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Posting Guru
Joined: Jul 2002
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From: Broussard USA
Reason for spitting plugs found
I just changed mine on my 2001 and I did not have any rust on any of the plugs. I have seen pics of this and that was why I looked, just to see. You may be correct.
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From: Denver USA
Reason for spitting plugs found
Originally posted by tankhead
I thought it was the heads design. In later years the spark plug hole is thicker to include more threads. In early models the heads only have like 4 or 5 threads holding the spark plug in place. I thought I saw pics one time comparing the differences in the two designs.
I thought it was the heads design. In later years the spark plug hole is thicker to include more threads. In early models the heads only have like 4 or 5 threads holding the spark plug in place. I thought I saw pics one time comparing the differences in the two designs.
Quote from 4x4x4x4:
There is a counterbore between the sparkplug seating (angled) surface and the top of the threads.In other words it doesn't appear to be any different than the earlier engines.
I have seen no pictures to prove or disprove either, but would like to.
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Joined: Oct 2002
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From: Roswell USA
Reason for spitting plugs found
While I'm trying to find the pics it might be easier to find some ppls changing plugs on an 02 and a 99. I'm not gonna spend much time trying to find something I already read and saw side by side pics. Comparing the two will be evidence enough.
Still trying, but here's another link backing half my post.
And if u read down more one person was told he received a modified newer head design, for more money of course! Gettin closer.
Still trying, but here's another link backing half my post.
And if u read down more one person was told he received a modified newer head design, for more money of course! Gettin closer.
Last edited by tankhead; Jul 1, 2003 at 12:36 PM.
New User
Joined: Jul 2003
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From: So. Cal
Reason for spitting plugs found
My 2003 F-250 just launched a plug from the #3 cyl on the passenger side! less than 300 miles on it ! Seems like this is going to be an on going problem? My 1999 F-250 never had a problem, not even one.
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Reason for spitting plugs found
So much for Ford having fixed the problem! Seems like a case of it wasn't tight in the first place.
I changed my plugs at 45k and didn't see any rust on any of them. A few were tight. They needed a 'bump' to loosen, but didn't find any that were loose. The original plugs didn't have full threads on the shank, but if there's only 4-5 full threads in the bore, that's all that are needed on the plug.
I used a dab of anti seize on em and torqued to the upper limit. I hope none work loose and the threads hold for the duration of my ownership!
I changed my plugs at 45k and didn't see any rust on any of them. A few were tight. They needed a 'bump' to loosen, but didn't find any that were loose. The original plugs didn't have full threads on the shank, but if there's only 4-5 full threads in the bore, that's all that are needed on the plug.
I used a dab of anti seize on em and torqued to the upper limit. I hope none work loose and the threads hold for the duration of my ownership!
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Reason for spitting plugs found
I have a 2001 F-350, V-10 with 87,000 miles and I just Blew a spark plug. Ford says it isn't there problem. Mechanics say They see it happening more often. Does anyone know where I can get help for this problem?