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sony rogers Posted on Oct 22, 2011
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Spark plug gap specs for 2002 envoy SLE - 2002 GMC Envoy

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Freddy

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  • GMC Master 1,311 Answers
  • Posted on Nov 03, 2011
Freddy
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Gap should be around 0.043"
Also, make sure to use only AC Delco 43-103 plugs, these are the OEM plugs and work best in these engines.

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I am changing the spark plugs on my 2002 GMC Envoy. I need to know what the gap will be

.043. Good luck. Thanks for rating my response and for using FixYa!
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