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What did you do to your NNBS GMT900 Tahoe/Yukon Today?

Discussion in 'General Discussion' started by phattyford, Aug 26, 2012.

  1. Sam Harris

    Sam Harris Full Access Member

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    “Soon”..? Tease.
     
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  2. Just Fishing

    Just Fishing Full Access Member

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    Completed the work on my tahoe
    I'm exhausted.

    new O-ring installed
    New pan gasket
    oil pressure bypass in the pan has been replaced, and a deflector added.
    Added an oil pickup tube support (I didn't cheap out, but probably should have).
    New front axle mounts installed while i was in there.

    I pulled the crank plate thingy, took a flash light to look at the cam bearings.
    I didn't go crazy detailed with it, but everything looked great.

    And i changed the oil pressure sender, and the screen under it.
    The screen looked surprisingly good.
    I was expecting crud in there...

    Fresh fill of oil... ran the engine.
    Not much change. :Insane:


    Oil pressure seems a bit more steady, but the gauge still flutters a little.
    It's maybe slightly higher hot... (or i'm just telling my self that to make me feel better).

    Driving it, better pressure rise than before, goes over 40... it seems a little delayed tho.

    I swapped oil filter brands for why the f not, no change. :boobs:

    Maybe it's something with the bypass in the pump it self?
    I did look to see if i could get to the bypass to clean/inspect, but it's blocked by the front cover.

    Calling it good enough.
    I have AFM disabled, and its plenty high enough for a non DOD/AFM engine IMO.

    Still odd that it suddenly dropped...
     
  3. mikeyss

    mikeyss Full Access Member

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    ....what did I do to my GMT900 today... I wanted to fix it but this happened:

    20201017_141751.jpg
     
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  4. Just Fishing

    Just Fishing Full Access Member

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    :eek:
     
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  5. iamdub

    iamdub Full Access Member

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    The deed has been done, sir.
     
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  6. Just Fishing

    Just Fishing Full Access Member

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    already thinking about that cam swap/full DOD delete.

    I figure if i need to pull the front cover and pan again, I'm going all in. :biggun:
     
  7. 89Suburban

    89Suburban Full Access Member

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    Sweet
     
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  8. 08z71bgm

    08z71bgm Supporting Member

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    Looks like the piston took a break from hard work.
     
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  9. avalonandl

    avalonandl Full Access Member

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    Do a 6.2....that engine is toast...
     
  10. Tonyrodz

    Tonyrodz Resident Resident

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    He did have a 6.2.
     
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