Question about 1998 GMC Sierra

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Spark plug wiring diagram

I need a spark plug wiring diagram for 1998 gmc sierra 1500

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  • Anonymous Apr 17, 2009

    i need the spark plug wiring diagram for a 1998 gnc 1500 with a 305 engine

  • Anonymous Mar 30, 2014

    3.6L SPARK PLUG GAP 1993 GMC SIERRA 1500

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I dont understand why you would need that unless you took off all the wires and took out all the plugs and forgot how the wires were.I have the same truck and I always do the plugs and wires one at time to make sure I make a mistake.If this is your ploblem let me know because i might be able to walk you though it.

Posted on Jan 22, 2009

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Spark plug diagram for Sierra 2500'2002'4x4

Posted on Mar 22, 2012

  • Pitotronic72 Mar 22, 2012

    They told me the 6

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