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2004 GMC Yukon Question: 350 vortec spark plug gap

 

Question

wiremann, Paso Robles, CA, May 22, 2011, 15:52
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what is the correcct gap?

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  • Answer #1

    dandd May 22, 2011, 18:35
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     Master

    These vehicles use platinum plugs which you NEVER try to re-gap because it will break off the platinum tips.

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    wiremann, May 22, 2011, 20:04
     Rookie

    Man! That's good to know, thanks. How often should they be replaced?

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