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  1. #1
    Sr. Apprentice
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    Default New Guy, Service code question

    I have a 99 Suburban 5.7liter with 173,000 miles on it. The Service Engine Soon light came on, scanned it & 3 codes came up. P1870, P0748 & P0719 Any ideas on what I should do. It shifts hard between 1st & 2nd.

    Thanks
    Jeff

  2. #2
    Legend
    Eddie Z71's Avatar
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    Default

    Hi, and welcome to the site! Glad to have you here! I hope another member can help you with the codes that you have pulled from the scanner. Good Luck!
    Eddie , 2000 Chevy Tahoe Z71 (old style)

  3. #3

    Default

    Welcome to the forum!!
    If you find yourself slipping,.....tie a knot.....hold on tight

    Black
    2008 silverado
    1500 crew cab
    5.3 L 4x4
    Borla exhaust, rbp black tip
    tint, bed liner
    2.25 in ready lift leveling kit
    18x9 rbp 94r
    33x12.5x18 toyo mts

  4. #4
    Sr. Apprentice
    Join Date
    Nov 2009
    Location
    Grandview, WA
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    Default

    Quote Originally Posted by Eddie Z71 View Post
    Hi, and welcome to the site! Glad to have you here! I hope another member can help you with the codes that you have pulled from the scanner. Good Luck!
    Thank You for the Welcome!

  5. #5

    Default

    Welcome to the site!


    2010 Z/71 Colorado C/C
    Black 4X4 w/5.3L V8
    ===============
    2007 Winnebago Adventurer
    w/8.1L Chevy & Allison 6spd.
    Canyon Lake, Texas

  6. #6

    Default

    P0719 Torque Converter/Brake Switch B Circuit Low
    P0748 Pressure Control Solenoid Electrical
    P1870 Trouble Code; "Transmission Componet Slippage"


    So they all seem to be transmission issues which would explain the hard shifts. I unfortunately am innexperienced with the transmission stuff. Jimmie is the transmission guru on this site so hopefully he will be able to help you.
    David
    2004 Silverado 2500 Crew Cab 4x4, AMSOIL EA air filter, Granatelli MAF sensor, Throttle body spacer, Magnaflow exhaust (true dual to 2 in 1 out muffler), 6" ProComp lift (add a leaf and 5" superlift rear block), Bilstein shocks, 35's (Cooper Disoverer ST) and 4.10 gears, Rhino Liner, EGRUSA fender Flares and widow visors, extended stainless steel brake lines, firestone airbags w/onboard air compressor, Pioneer Avic X940BT navigation, Accel backup camera.
    http://www.gmtruckclub.com/forum/sho...Silverado-2500
    1960 Land Rover Series II 88
    2001 Pontiac Sunfire
    2013 Toyota Avalon Limited (Wife's Car)
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  7. #7

    Default

    Welcome to the site!

    Bobby - North Carolina
    2008 4x4 5.3L V8
    6" Suspension Lift and 1.5" Body Lift
    20x9 Ballistic Jesters w/35" Toyo Open Country MT's & 1.5" rear wheel spacers
    4:56 Yukon Gears
    Hypertech Speedometer Calibrator
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  8. #8

    Default

    Welcome to the site!
    Scott

    ΜΟΛΩΝ ΛΑΒΕ

    '94 Chevy Suburban K1500
    3" exhaust w/ aero turbine non-baffled muffler
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    CB w/ 44" whip antenna


  9. #9
    Master Mechanic
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    Sep 2008
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    Welcome to the site..

    Suburban parts
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  10. #10
    Legend s5belford's Avatar
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    Welcome to the club!


    S.BELFORD

    2009 Silverado LT1: All Star Edition
    5.3 Liter V8 4x4

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