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Anonymous Posted on Apr 03, 2012

Spark plug gap for 1990 GMC truck 5.7 CID - 1990 GMC Sierra

  • todd goforth Dec 05, 2016

    The gap for spark plugs for 1990 GMC is .35

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1 Answer

jamessizer

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  • GMC Master 7,515 Answers
  • Posted on Dec 05, 2016
jamessizer
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Visit the on-line store, know as reliable-store, they have the repair manuals. I'm sure you will get the solution of your problem.
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3 Related Answers

jasonrwagner

Jason Wagner

  • 14 Answers
  • Posted on Jun 26, 2008

SOURCE: Spark plug gap on a 1992 Gmc Sonoma 4.3L V6 FI

Usually somewhere on the engine or in the engine compartment, there is a sticker with the engine specifications. The spark plug gap should be included. If not .032 or an inch should be close.
Good luck

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Anonymous

  • 324 Answers
  • Posted on Nov 26, 2008

SOURCE: SPARK PLUG GAP

go to autozone.com

click on repair guide, then on specs, it tells you the gap in the specs.

Anonymous

  • 642 Answers
  • Posted on Nov 22, 2010

SOURCE: What is the spark plug and gap for a 1985 gmc

Engine code W : 0.035"
Engine code Z : 0.045"

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