Question about 1993 GMC Sierra K1500

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What are the timing specs on a 1993 GMC Sierra Z71?

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  • Anonymous Jan 14, 2010

    350 v8...the computer has a timing adjustment in it...how do i disable that so i can manually adjust timing...computer keeps reseting timing and making it way off

  • Anonymous Jan 14, 2010

    where is that generally located? i have 2 wire plugs that connect to the back of the distributor...is it one of them?

  • Anonymous Jan 14, 2010

    there is also sluster of wires that are connected to the passenger side firewall...i was told it might me under there...if so which one is it?? i looked where they sould be which is in the dash by the glove box but it wasnt there

  • Marvin
    Marvin May 11, 2010

    need a factrory manual? go here to buy one.http://www.faxonautoliterature.com/produ...

  • Marvin
    Marvin May 11, 2010

    it is the single wire at the distributor cap.

  • Marvin
    Marvin May 11, 2010

    You then need to find to advance wire for the distributor and disconnect it.

  • louisfowler_ May 11, 2010

    v-6 or v-8?timing specs on the the white sticker under the hood

  • Marvin
    Marvin May 11, 2010

    what engine do u have?

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Theres no advance wire on that engine!!! theres a hash mark on the back of the intake and one on the distrbutor shaft you set the distrib with the has mark and yes!! the ecm! will always reset the timing that is what is does but if it's pinging or knocking then change the ignition module cause the dwell side of it is out of range!

Posted on Jan 14, 2010

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