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Timing a 1990 Suburban with the 350?

Discussion in 'The Garage' started by joey90, Jan 17, 2004.

  1. joey90

    joey90 Registered Member

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    I've heard there's something I need to disconnect to the computer doesn't adjust the timing or something while I'm trying to time it. Is this true? is there anythign special i need to do?
     
  2. MTBLAZER89

    MTBLAZER89 3/4 ton status GMOTM Winner

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    There is a wire I believe it's brown. It is on the firewall near the driver side hood hinge. It is a quick disconnect. This removes the computer advance so you can set the timing /forums/images/graemlins/thumb.gif
     
  3. joey90

    joey90 Registered Member

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    Hmm i went out and looked and the nearest thing is a connector with a grey wire and a blue wire. Next closest thing is a three wire connector with purple, green, and some other color. I didn't see any brown wires around there.
     
  4. BurbinOR

    BurbinOR 3/4 ton status

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    Look closer by the master cylinder/power booster. It is a single tan/brown wire with black line in it that has a plug connector. After you unplug it and set the timing, you may need to unhook the battery to reset the code that will be set when you start it back up after plugging it back in.
     
  5. joey90

    joey90 Registered Member

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    Oooooh ok, see it now, it's behind that fat harness. Thanks alot guys.

    BurbinOR where are you in oregon? I live in North Portland...
     
  6. BurbinOR

    BurbinOR 3/4 ton status

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    [ QUOTE ]
    Oooooh ok, see it now, it's behind that fat harness. Thanks alot guys.

    BurbinOR where are you in oregon? I live in North Portland...

    [/ QUOTE ]

    Gresham. Lots of locals here, if you pay the membership of $25 (worth it bud) you get access to the regional boards where you can post up for the other Oregonians/Washingtonians. Welcome..........glad you found the timing wire. /forums/images/graemlins/thumb.gif
     
  7. joey90

    joey90 Registered Member

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    Right on, i'm gonna do that as soon as i get paid. Yea so i gave it a full tune up today and oh my god what a difference. It's like drivin a totally different rig, sooooo smooth, haha. Thanks for the help guys.
     
  8. BurbinOR

    BurbinOR 3/4 ton status

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    [ QUOTE ]
    Right on, i'm gonna do that as soon as i get paid. Yea so i gave it a full tune up today and oh my god what a difference. It's like drivin a totally different rig, sooooo smooth, haha. Thanks for the help guys.

    [/ QUOTE ]

    /forums/images/graemlins/thumb.gif /forums/images/graemlins/burb.gif
     

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