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  1. #1

    Question Major OIL leak intake manifold/head gasket on 2005 5.3 Z71

    2005 1500 5.3 Vortec 4 Wheel Dr. Silverado Z71

    Subject:
    Major OIL leak in intake manifold/head gasket on 2005 5.3 Z71

    Oil is spraying under the intake manifold on the valley plate between the heads

    Hello,
    I posted a few times here, but nothing like this. My engine has been leaking oil for a while. Now I opened up the hood to see oil all over the top of engine. Could this be a cracked head? What are the symptoms?

    Oil in the valley leading to the intake manifold, which is also covered with oil.

    I would appreciate any replies or suggestions. Thank you.
    Last edited by HeavyChevyTom; 07-23-2012 at 11:26 AM.

  2. #2

    Default

    Start your truck and watch under the hood to see where its coming from...could be something minor or something big...just an idea

    2009 Chevrolet Silverado 1500 LT Z71 Crew Cab "All-Star Edition"

    Line-X'd Bed
    Line-X'd Custom Brush Guard(Heavy Duty)
    5.3L Flex Fuel
    275/65R18 Toyo Open Country AT2's
    2" Rough Country Leveling Kit(want to get the 2.5 RC kit)
    EGR In-Channel Vent Visors
    Exterior PLUS Package
    Interior PLUS Package
    K&N Drop-In Air Filter
    ProFlaps
    Cat-Back Dual Exhaust
    Black Bowties
    Diablo Sport Predator(AFM Disabled)
    ProFlaps
    Towing Mirrors
    Next Planned Mods
    Blacked out Tail Lights
    Aftermarket Rims

  3. #3

    Default

    I would clean it up as good as I can then watch where the oil is comg from while engine is running.
    2011 Chevy Silverado LT 4WD 30k miles
    2001 Suburban 2WD, 5.3, V8 185k miles
    1993 964
    1996 318TI

  4. #4

    Default

    Quote Originally Posted by bazar01 View Post
    I would clean it up as good as I can then watch where the oil is comg from while engine is running.
    Thats what i meant!

  5. #5

    Default

    Oil runs down and back. It is leaking from the highest area that is wet. Clean and validate.

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