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  1. #1

    Default Crazy Idle Issues

    Alright so when my truck is at idle it sputters a little. Crazy part is when you open the hood it then idles fine. Close the hood it will instantly start sputtering. Never dies but will just sputter really bad. Need any thoughts possible. I have no idea what would cause this
    2000 Chevy Silverado 4WD Classic
    2'' lift Torsion Keys and air shocks
    33/12.50 Hankook Dynapro M/T
    3 1/2'' down pipe back 6" Tip
    Dodge Towing Mirrors
    Smoked Tails, Cab Lights, and Side Marker Lights
    1% Rear and Side Window, 20% Front Tint
    American Racing Wheels/ With a custom black paint
    Cold Air Intake
    Edge Performance Chip
    Custom Audio System
    LED Tails
    Black background headlights and parking lights

  2. #2


    Air Intake?

    If at first you don't succeed, get a bigger cheater bar.

    1999 GMC Sierra SLT Z71 | 5.3 "Vortec" | Spectre "Cold Air Intake" | TransDapt TBS | Hypertech 30005 Tune | 2005 Chevy Tail Lights | Denali headlights | Grill Mounted Fog Lights | AWS Bug Shield | 265/70/16 Futura Scramblers | Boss HD Speakers | 2005 Overhead Console | Flowmaster Super 40 mufflers 2N1O | Mostly stock-ish
    Bigger Amp Alternator | Electric Fans | Transmission Fluid cooler | Paint (Halfway there)| Interior Restoration/Upgrade with newer model parts | Window Visors (In channel) | Tint | Low-Profile Tool Box | LEDs throughout stock cab locations (68% Done) | And whatever is spurr of the moment
    CVN-69 "IKE-ATRAZ" AIR/V-2 Gear Dawgs

  3. #3


    Yea I have a spectre

  4. #4



  5. #5


    Quote Originally Posted by MTM View Post
    Yea I have a spectre
    I'm not a big fan of CAI (a lot of people on here will tell you that, haha) and, I am not familiar with the Spectre unit. However, if, like most, it is open topped when the hood is open consider this.

    It breathes when the hood is open and smothers when the hood is closed. If that is the way it is operating, something is blocking the air intake.

    '09 Avalanche LTZ - Black
    '05 Envoy XL (sold)

  6. #6


    Just recently put a new MAF sensor and I'm think it reads a lot better than the factory one and its trying to adjust when the hit air is across it and then the hood open it gets direct cold air

    - - - Updated - - -

    Just recently put a new MAF sensor and I'm think it reads a lot better than the factory one and its trying to adjust when the hit air is across it and then the hood open it gets direct cold air

  7. #7


    The MAF (Mass Air Flow), doesn't care about the temp of the air, only the density of the air (yes, temperature does effect the density of the air).

    If a CAI is doing it's job, it should be drawing COLD (outside of engine compartment) air when the hood is closed, if opening the hood makes a difference, the hood closed air input is blocked.

  8. #8


    I am at lost on this problem.Everyone I have talked to has no idea and all the guys at the local dealership have no idea either. Need everyone's help

  9. #9


    the first step would be to put the original intake components back on to see if that changes anything. I can't think of any other event that would cause the trouble you are experiencing.
    "It went together didn't it? Well then there has to be a way to take it apart!" - Me.

    Check out my image gallery HERE.

    "The true measure of a man is how he treats someone who can do him absolutely no good." ~Samuel Johnson (1709-1784)

  10. #10


    Guess its worth a try

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