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  1. #1
    Jr. Mechanic
    Join Date
    Aug 2006
    Location
    Wesley Chapel, Fl
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    Default 89 suburban 5.7 350 firing order diagram

    does anybody have a diagram and can explain how it goes because i have never done my own tune up's? btw i think you guys will like what iv'e done... jeff? anybody know?

    Accel 48000V Performance Ignition Coil
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    Last edited by 89suburban350; 08-28-2007 at 09:17 PM.

  2. #2

    Default

    Just change one plug or plug wire at a time and go on to the next one. As far as the firing order goes its right on the top of the intake manifold.

    Someone will come up with a picture soon enough.

    Technology is great, when it Works,
    And one Big Pain in the Ass When it Doesn’t.
    Detroit Iron Rules, All the Rest are Just Toys.
    94 GMC Burban, 5.7L (350), 4X4, Auto
    86 GMC Burban, 350, 2 WD, Auto
    79 GMC pickup plow truck, 400, Full time 4X4, Auto
    86 Pontiac Fiero SE, 2.8L, Auto, only mid engine American car
    See a Pattern yet?

    15 year GM assembly line worker.

  3. #3
    Jr. Mechanic
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    Default

    thanks fiero,



    i found the picture but i am confused about how this goes does the white circle in the distributor mean that is cylinder 1?

  4. #4

    Default

    I believe so but I am not sure, hopefully someone else will know. It’s been a long time since I did any work on my old 86 Burb, when we got the 94 Burb we retired the 86 to on the farm work only and haven’t had to work on it in over 3 years.

    Technology is great, when it Works,
    And one Big Pain in the Ass When it Doesn’t.
    Detroit Iron Rules, All the Rest are Just Toys.
    94 GMC Burban, 5.7L (350), 4X4, Auto
    86 GMC Burban, 350, 2 WD, Auto
    79 GMC pickup plow truck, 400, Full time 4X4, Auto
    86 Pontiac Fiero SE, 2.8L, Auto, only mid engine American car
    See a Pattern yet?

    15 year GM assembly line worker.

  5. #5
    Jr. Mechanic
    Join Date
    Aug 2006
    Location
    Wesley Chapel, Fl
    Posts
    140

    Default

    its cool man dont worry about it... thanks for the help you already have given...

  6. #6
    Sr. Apprentice justcuz's Avatar
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    Aug 2007
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    Alta Loma, Ca.
    Posts
    55

    Default

    Yes, it does. You can put number one anywhere you want, just as long as the firing order is right. I used to put number one on the passenger side right behind the vacuum advance on the distributor. It really does not matter as long as your rotor is pointing to number one and the piston is on TDC on the firing stroke. On all V engines number 1 cylinder is the first one on the bank sitting furthest forward.

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