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Old 05-11-2013, 02:31 PM   #21
Sonic Mustang
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The expansion of the aluminum head is greater then the steel of the plug at higher temps...so the plug will naturally be a slight bit looser and the carbon buildup less solid...it seems a plausible theory to me and it worked well in my case...

I think you missed my point. I agree with you. I also think few Ford dealers will follow the TSB exactly. Can you imagine Ford techs letting the car cool down to ambient temp overnight just to change plugs?
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Old 05-11-2013, 08:35 PM   #22
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Going to tackle mine this Saturday... have all the tools ready to go, just in case... extractor included.
Just finished. On the plus side, never needed the extractor! All 8 came out, although 5 and 6 were a little tough going for a while, but they came out. Plugs had a fair amount of carbon on them.

Let the car sit overnight, followed the TSB exactly, and nothing broke. Some plugs just took more effort than others. Job took about 3.5 hours, but I was taking my time and I had to remove the supercharger inlet arm (covered 7 and 8).

All in all, not too bad a job.
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Old 05-12-2013, 08:50 AM   #23
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I think you missed my point. I agree with you. I also think few Ford dealers will follow the TSB exactly. Can you imagine Ford techs letting the car cool down to ambient temp overnight just to change plugs?
I was with you...just explained my mechanic friends's thinking on not letting it cool...he seemed to indicate it was normal practice among the guys who actually do the work...so I am betting you are correct in your thought...
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Old 05-12-2013, 08:52 AM   #24
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Just finished. On the plus side, never needed the extractor! All 8 came out, although 5 and 6 were a little tough going for a while, but they came out. Plugs had a fair amount of carbon on them.

Let the car sit overnight, followed the TSB exactly, and nothing broke. Some plugs just took more effort than others. Job took about 3.5 hours, but I was taking my time and I had to remove the supercharger inlet arm (covered 7 and 8).

All in all, not too bad a job.
Congrads! That stressful day is over!
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My wife has said she is wondering when she will be in the garage and the GT 500 will be in the bedroom...I tell her thats just crazy...there is no way to get the car up the stairs!

There is NO problem that can't be solved by the simple application of more Horsepower!!
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Old 05-13-2013, 01:25 PM   #25
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Congrats! That stressful day is over!
Shouldn't we all be pissed off at the engineers who turned spark plug removal into a stressful day capped with a TSB?

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Old 05-13-2013, 01:58 PM   #26
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Shouldn't we all be pissed off at the engineers who turned spark plug removal into a stressful day capped with a TSB?
Probably looked good on paper LOL....
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Old 05-13-2013, 01:58 PM
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