On Jul 29, 5:10*pm, Brent > wrote:
> On 2009-07-29, Mark G7#9 > wrote:
>
>
>
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> > On Jul 29, 1:22*am, Brent > wrote:
> >> On 2009-07-29, Mark G7#9 > wrote:
>
> >> > On Jul 28, 9:42*pm, Brent > wrote:
> >> >> On 2009-07-29, GILL > wrote:
>
> >> >> > Mark G7#9 wrote:
> >> >> >> If any of you gents have a minute, can you look at the below vid
> >> >> >> please :
>
> >> >> >>http://www.youtube.com/watch?v=WdbbLLgud6Q
>
> >> >> >> Car was fine on the ride home, but right before pulling into the
> >> >> >> garage, something happened (it started shaking, making a tractor sound
> >> >> >> and stalled).
>
> >> >> >> All fluids are ok. Belts look fine. Can't see any leaks. No Service
> >> >> >> Engine indication.
> >> >> >> Car has 105K and the only thing ever changed was the clutch.
>
> >> >> >> The car starts ok but makes a horrible noise, shakes a bit and stalls
> >> >> >> after 45 seconds (see vid).
>
> >> >> >> Thanks
> >> >> >> Mark
> >> >> > Sounds like you popped a spark plug. Pull the coils off, see if one is
> >> >> > not loose.
>
> >> >> I was going to say the same thing without even listening... sure enough
> >> >> that's exactly what it sounds like. That a plug has ejected itself.
>
> >> >> There are a number of kits on the market specifically for the 4.6 to
> >> >> restore the thread with the head on the car. I used the helicoil one on
> >> >> a '99 GT. No drilling required with that kit (the tap is designed to
> >> >> remove the minimum amount of material). Just went slow and easy
> >> >> with lubricant on the tap, taking it out frequently to clean off chips
> >> >> so they didn't fall inside the cylinder. Once tapped a vacuum cleaner
> >> >> with a small hose attached to it (homemade attachment) did a good job of
> >> >> sucking out the few chips that did fall in. Turning over the engine
> >> >> with the coils upluged was another step to eject anything that may have
> >> >> been left out the open spark plug hole.
>
> >> >> The downside is that the kit is $200. But the tool and the tap is
> >> >> specially designed to get down the deep spark plug wells.
>
> >> >> Those with superchargers and such might want to consider one of the kits
> >> >> with more robust inserts. But those require drilling the hole larger,
> >> >> which means more chips, etc and so on.- Hide quoted text -
>
> >> >> - Show quoted text -
> >> > If so, why is there no ODB code set. I would imagine a misfire would
> >> > be detected by the computer.
>
> >> It takes awhile for the code to show up. On that '99 it didn't show up
> >> right away. When a coolant was shorting one of the plugs on my '97 it
> >> took miles of driving and purposely accelerating hard enough to make it
> >> happen before the MIL came on.- Hide quoted text -
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> >> - Show quoted text -
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> > I've Googled this issue and some say that rethreading is only
> > temporary. Called the local Ford dealer and he also said that usually
> > they replace the head (a couple of grand he told me).
>
> > Is replacing the head something I can do in the garage? How much will
> > it cost for 2K GT?
> > I don't want to junk it just yet since I just had a new clutch kit put
> > in and new tires as well :-(
>
> I put a regular sparkplug helicoil in an '89 MX-6 GT (that's a turbo
> charged car), and was fine for the rest of the car's life.- Hide quoted text -
>
> - Show quoted text -
You guys were right. The plug closest to the passenger is out. The
coil boot is shredded but the coil itself looks ok.
How can I tell if the threads are damaged or is it a given? (It's hard
to see into that far hole.) Should I just try to install a new plug
and see if it's tight. I did find a local guy that said he'll put a
new helicoil for around $200 plus I'll need about $100 for tow.