01 Suburban -- Rough idle, hard starts

Discussion in 'GM/Chevrolet' started by meatloaf, Feb 16, 2009.

  1. meatloaf

    meatloaf

    Messages:
    2,361
    Likes Received:
    267
    Joined:
    Sep 1, 2004
    Location:
    So. Austin, tx
    Have an 01 suburban that is idling rough. If you turn on the AC, it almost wants to die or dies on occasion. It is also taking longer to start. It has fresh plugs and wires. Any suggestions? 5.3L engine, 160K+ miles...

    Thanks in advance,

    Meatloaf
     
  2. Mace

    Mace rock scientist.. Staff Member s-Moderator

    Messages:
    21,701
    Likes Received:
    2,145
    Joined:
    Feb 17, 2002
    Location:
    Las Vegas
    you run the codes yet?
     
  3. meatloaf

    meatloaf

    Messages:
    2,361
    Likes Received:
    267
    Joined:
    Sep 1, 2004
    Location:
    So. Austin, tx
    had them plug the code reader at Autozone and it show some 02 sensor codes... Would that make the engine run rough and have problems starting?
     
  4. Mace

    Mace rock scientist.. Staff Member s-Moderator

    Messages:
    21,701
    Likes Received:
    2,145
    Joined:
    Feb 17, 2002
    Location:
    Las Vegas
    yes..
     
  5. meatloaf

    meatloaf

    Messages:
    2,361
    Likes Received:
    267
    Joined:
    Sep 1, 2004
    Location:
    So. Austin, tx
    Thanks Mace, I will look into it...Cleaned out the throttle body & replace TPS yesterday and it is idling better but still has occasional starting problems.
     
  6. WckedMidas

    WckedMidas

    Messages:
    967
    Likes Received:
    13
    Joined:
    Apr 25, 2005
    Location:
    baltimore
    just went threw same thing on my 99 burban 5.7 vortec it was the fuelinjection spiderweb
     
  7. fsusteve

    fsusteve

    Messages:
    3,803
    Media:
    18
    Albums:
    1
    Likes Received:
    52
    Joined:
    Aug 2, 2003
    Location:
    Naples/Big Pine Key, Fl
    EGR is bad.
     
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.