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New Guy, Service code question

Discussion in 'Member Introductions' started by jedepsub, Nov 27, 2009.

  1. jedepsub

    jedepsub Rockstar

    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. Eddie Z71

    Eddie Z71 Epic Member 5+ Years 1000 Posts

    Hi, and welcome to the site!:glasses: Glad to have you here! I hope another member can help you with the codes that you have pulled from the scanner. Good Luck!
  3. Shorty 71

    Shorty 71 Epic Member 5+ Years ROTM Winner 1000 Posts

    Welcome to the forum!!
  4. jedepsub

    jedepsub Rockstar

    Thank You for the Welcome!
  5. retired2001

    retired2001 Epic Member 5+ Years 5000 Posts

    Welcome to the site!
  6. dsfloyd

    dsfloyd Epic Member 5+ Years ROTM Winner Gold Member 1000 Posts

    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.
  7. canislupis69

    canislupis69 Epic Member 5+ Years ROTM Winner 5000 Posts

    Welcome to the site!
  8. ct9a

    ct9a Epic Member 5+ Years 1000 Posts

    Welcome to the site!
  9. GMPartsClub

    GMPartsClub Epic Member 5+ Years 500 Posts GMTC Sponsor

  10. s5belford

    s5belford Epic Member 5+ Years 1000 Posts

    Welcome to the club!

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