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  1. #51
    Legend


    Enkeiavalanche's Avatar
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    Apr 2010
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    Piermont,NY, back in Northern NJ now, But may be in IL soon....
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    5,321

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    How many miles since your last change? Did the dealer do it?
    08 Z71 Avalanche Mods to date: K&N CAI,Hellwig Swaybars and End Links, Corsa Sport Exhaust, Superchips Programer,IPCW LOF & 3rd brake light and tails, AMI Gas door,Show Hooks and Door locks, Enkei Wheels, with Pirelli tires, StreetScene Bowties, Grant Steering wheel,Muth signal mirrors,SSBC Big Brake kit,Huskyliner Mug gards,Floor mats and Hood shield, McGard Lug nuts and locks, Bedrug, Cervini's Ram Air hood,35watt HID Fog lights, Sylvania bulbs all around ZXE's Highs and Lows, WhiteNight Back up lights,Sirius and HD Radio, SnugTop sitting on deck now Got a Softopper on now,Tempress Boat Hatches.... New Bilstein shocks are on... New Mods coming soon..... X

  2. #52
    Sr. Apprentice
    Join Date
    Jan 2008
    Location
    Taneytown, MD
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    40

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    It's been ~1500 miles and the dealer changed the oil. I'm taking it in tomorrow for them to check it. When I called them today they said it would take a half hour or so since it would need to cool down before they could check it. Hopefully that means they will drain it to measure the amount lost.

  3. #53
    Legend


    Enkeiavalanche's Avatar
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    Piermont,NY, back in Northern NJ now, But may be in IL soon....
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    They let it settle for a bit before they check it.. Did you have any Blue smoke?

  4. #54
    Sr. Apprentice
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    Jan 2008
    Location
    Taneytown, MD
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    No smoke. The only sign of anything wrong was the loud ticking noise. That caused me to check the oil and I am glad that I did. My daily commute is 120 miles so without oil my engine could have easily blown up before I had any other indication of a problem.

  5. #55
    Master Mechanic zigger215's Avatar
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    Sep 2011
    Location
    Fairbanks, Alaska
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    551

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    Read earlier in the thread that the 6.2s in the Denalis have AFM, that is incorrect, it's not a feature until 2014...looking into a 13 Denali right now, AFM=not possible on the 6.2 for this year and older....

  6. #56

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    THIS IS A GM DESIGN FLAW!
    THIS IS GOING TO BE MORE APPARENT IN THE COMING MONTHS AS THESE 2007-2009 MODEL YEARS START CREEPING UP ON THE 75K-85K SWEET SPOT MILEAGE.
    GM IS TRYING TO HIDE THE FACT THEY HAVE A PROBLEM AND HAVE A BAND-AID SOLUTION.
    YOU CANNOT CHECK IT WITHOUT A COMPLETE TEAR DOWN OF THE MOTOR.
    IF YOU HAVE THE 5.3L MOTOR WITH AFM I WISH YOU LUCK.
    MY STORY IS BELOW:

    http://www.gmtruckclub.com/forum/sho...vice-Lights%29
    Last edited by Pikey; 03-13-2013 at 02:02 PM. Reason: story is repeat post. added link to previous post.

  7. #57

    Default

    i used my tuner to turn my afm off. O F F off. V8 mode 24/7 now.

    and its staying that way.

    Alex


    2011 GMC Sierra SLE 5.3 Z71 4X4 Stealth Gray Metallic / 2004 Chevy Impala LS 3.8 Cappuccino

    Tow mirrors - Diablew Tuned - Flowmaster Regular 40 - Ready Lift 2.5' lift - BFG LT A/T K/Os - Carr Light Wing - TruckLite LED lights - Optima Red Top - 50% Front Window Tint - Line-X bedliner - Airaid MIT - Tekonsha P2 - ARS Billet Grill - Fia custom fit seat covers

  8. #58

    Default

    OH WOW what did I buy , problems I guess now 2009 silverado ltz with 5.3 ho motor with the fuel management
    only 20,000 miles on it . first chev truck nightmare ??

  9. #59

    Default

    Quote Originally Posted by LEBARONCARS View Post
    OH WOW what did I buy , problems I guess now 2009 silverado ltz with 5.3 ho motor with the fuel management
    only 20,000 miles on it . first chev truck nightmare ??
    Well you'll have 60,000-70,000 miles until any problem may arise and by then GM hopefully will have a fix. Or you could turn the AFM off with a tuner.

    1996 Chevy Tahoe LT 5.7L V8 4X4 205,000+ miles. Built proudly at Janesville Assembly in Janesville, Wisconsin
    Basic mods: Lights all over, bunch of electrical work, and a couple cooling mods.

    Check out my other mods in My Garage: http://www.gmtruckclub.com/forum/sho...t-Tahoe-4-Door

  10. #60

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    Alex have a 2009 with a 5.3 ho with fuel management , what tuner did you buy to turn this awfull
    thing off . I believe that by turning the cylinders off they are running dry , causes wear anyway
    hope you can help love this truck for looks and power

    Garry

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