Mustang 4.6L spark plug change
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How does the gap on the used compare to spec gap?
I don't think those are the factory plugs..... I just did the plugs on my 2007 GT 4.6 last weekend and Ford uses a 2 piece spark plug that looks nothing like your picture.
Originally Posted by Barkleymut
I don't think those are the factory plugs..... I just did the plugs on my 2007 GT 4.6 last weekend and Ford uses a 2 piece spark plug that looks nothing like your picture.
I believe in MY 2008 Ford changed it's spark plug design for their modular engines back to the "normal" style plug from the most troublesome 2 piece design.
Whimsey
I don't think those are the factory plugs..... I just did the plugs on my 2007 GT 4.6 last weekend and Ford uses a 2 piece spark plug that looks nothing like your picture.
I believe in MY 2008 Ford changed it's spark plug design for their modular engines back to the "normal" style plug from the most troublesome 2 piece design.
Whimsey
In that case, be glad that you have an 08, that was a 2 day process to change plus....luckily I only broke 2 of them.
Originally Posted by Barkleymut
I don't think those are the factory plugs..... I just did the plugs on my 2007 GT 4.6 last weekend and Ford uses a 2 piece spark plug that looks nothing like your picture.
I see what your saying about the factory style plug.
Wonder if the engine being a Bullitt motor makes a difference
I'm not the original owner, but It only had around 30K when purchased so I'd think that's way early for a plug change but who knows
I don't think those are the factory plugs..... I just did the plugs on my 2007 GT 4.6 last weekend and Ford uses a 2 piece spark plug that looks nothing like your picture.
I see what your saying about the factory style plug.
Wonder if the engine being a Bullitt motor makes a difference
I'm not the original owner, but It only had around 30K when purchased so I'd think that's way early for a plug change but who knows
Bullitt would not make any difference, I just looked it up and yeah they changed over the style of spark plug 8 months after my car was manufactured.
Originally Posted by Barkleymut
I don't think those are the factory plugs..... I just did the plugs on my 2007 GT 4.6 last weekend and Ford uses a 2 piece spark plug that looks nothing like your picture.
The plug design changed in 2008 to what OP has.
I don't think those are the factory plugs..... I just did the plugs on my 2007 GT 4.6 last weekend and Ford uses a 2 piece spark plug that looks nothing like your picture.
The plug design changed in 2008 to what OP has.
FWIW these are the plugs in an 2008 F150 4.6
![[Linked Image from fototime.com]](http://www.fototime.com/860BF25C99141E7/large.jpg "[Linked Image from fototime.com]")
1) OMG Those have been anti-seized! The Anti Anti-Seize League will come knockin' at your door.
2) 2 piece spark plug?? I'll Google it (ha-ha, beat you to it) but I never heard of 2 piece spark plugs.
2) 2 piece spark plug?? I'll Google it (ha-ha, beat you to it) but I never heard of 2 piece spark plugs.
Originally Posted by Kira
1) OMG Those have been anti-seized! The Anti Anti-Seize League will come knockin' at your door.
I put that [censored] on everything.
1) OMG Those have been anti-seized! The Anti Anti-Seize League will come knockin' at your door.
I put that [censored] on everything.
Thought this was going to be a complaint session about the older plugs like on my '07 Explorer with the 3V 4.6. Did those this weekend and broke 3 of them. Already had the lisle tool handy and extracted what was left of them no problem.
![[Linked Image]](https://www.bobistheoilguy.com/forums/attachments/usergals/2020/04/full-368-43321-20200404_195537.jpg "[Linked Image]")
Yup! that's what mine looked like. I love my Fords, but I was cursing at them when I had to spend $70 on a tool to remove 2 plugs.
Is possible to replace that awful design with a newer plugs??
Thought only 5.4L had those, no?
Originally Posted by LazyDog
Is possible to replace that awful design with a newer plugs??
Yes, Ford and aftermarket have already addressed that. Almost any new plugs you buy will be redesigned and not break like the OE junk.
Is possible to replace that awful design with a newer plugs??
Yes, Ford and aftermarket have already addressed that. Almost any new plugs you buy will be redesigned and not break like the OE junk.
The 4.6 3V got the same setup as the 5.4, so the 2006 and 2007 Explorers got the bad plugs. The ones I pulled out had been in 9 years and 90,000 miles (yes, about 30,000 miles too long). I put them off since I didn;t want to deal with them till i developed a noticeable misfire issue.
At least on the Explorer, the plugs are accessible - no wobbles, etc... like on the F150 or Expedition....
At least on the Explorer, the plugs are accessible - no wobbles, etc... like on the F150 or Expedition....
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