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  1. #11


    still don't know whats wrong. i guess i'll have to take it to the shop. i unhooked all of my audio equipment and ran a new ground for the battery and it still idles up and down.

  2. #12


    How's your air cleaner? Is it stock? If the air cleaner is dirty or full of red oil I would clean the mass airflow sensor.

    2004 SILVERADO 2500HD LS
    Pro Comp Leveling Kit
    285-75-16 Cooper ST All Terrains
    Pro Comp Programmer
    Bilstein Shocks
    Linux Bed Liner
    Tinted Windows

    Other rides:

    1967 Landcruiser <350 Chevy>
    1970 Camaro
    1990 Geo Metro Convertible
    2007 FJ Cruiser

  3. #13


    air cleaner is fine and mass air looks good. i guess i'll just pay someone else to spend time on it. i have to get it going soon because my suburban is for sale so if it sells soon i need my pickup back so i have something to drive. thanks to all who gave suggestions. i'll be sure to let everyone know what stupid small thing i forgot to check, because it's always something stupid that u never to think to check.

  4. #14


    a friend of mine has a 04 silverado that was totaled. can i swap the computers and see if that fixes it, or are they not compatable?

  5. #15


    Quote Originally Posted by tnchevy View Post
    a friend of mine has a 04 silverado that was totaled. can i swap the computers and see if that fixes it, or are they not compatable?
    Your computer is programmed to your truck, accessories, and security system. The other computer may work if you get it reprogrammed. This can be done at the dealer or a repair shop that has the pass through programming software.

  6. #16
    Jr. Engineer
    Join Date
    Feb 2007
    Edmonton, Alberta, Canada


    I would do the ground connections, and check your output on your battery when its running, and sitting. Check the voltage regulator too.

    1993 K1500 Suburban 350TBI, 378,486KMS on frame, 49,000KMS on Drivetrain. Lots of mods, built for haulin trailers and haulin @$$ :)

    2000 K2500 Yukon XL 6.0L Vortec 252000KMS custom CAI, and exhaust...but not done yet.

    "If you are dumb enough to do something you don't know how to do, and can't do it safely then WHEN you get hurt its your own fault...BONEHEAD"

  7. #17


    well the verdict is in... i'm an idiot! the throttle body had build up in it. cleaned it out and the truck runs great. easy fix,but just never crossed my mind.

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