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  #16  
Old 06-10-2011, 08:57 AM
bluerang3r bluerang3r is offline
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Default Re: Is this normal? spark plug with pic

dont forget to antiseize the plugs
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  #17  
Old 06-10-2011, 09:30 AM
rwenzing rwenzing is offline
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Default Re: Is this normal? spark plug with pic

Quote:
Originally Posted by skimmin View Post
I've been told that newer vehicle tend to run slightly leaner then older vehicles mainly for emissions.
Not since the 1970's ...

Virtually all newer vehicles run very close to ideal mixture when in closed loop because that's what the three-way cats need to do their job.

The plug in the picture looks just fine.

I can't think of any good reason to replace a new Motorcraft coil with a Screamin Demon.
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  #18  
Old 06-16-2011, 03:08 AM
Maritime Storm Maritime Storm is offline
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Default Re: Is this normal? spark plug with pic

Agreed. The plugs in your truck, like mine are copper-core nickel plugs, figure on replacing them next year, re-gap, small dab of anti-seize and re-install for now would be my advice.
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