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  1. #1
    Sr. Apprentice Schwindle is a glorious beacon of light
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    Default Cold Idle Sputter

    Lately when I start my hoe it seems like the engine stutters. It stops after the engine warms up. But it seems like the longer it sits or the colder it is outside the worse it is. I was told it may be the plugs but I replaced both plugs and wires and have seen no change. Any ideas???
    KYLE

    Washington
    2002 Chevy Tahoe Z71 5.3L V8
    Diablosport Performance Programmer
    6" Tuff Country Lift, 20" Ultra's, 35" TOYO Open Country A/T's
    Jet Performance TBS, K&N Cold Air Intake, Magnaflow Cat-Back Exhaust

    BLACK BETTY

  2. #2
    Newbie jdubg23 is a glorious beacon of light
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    Default

    i think my 99 2wd is doing the same thing. just started a couple days ago... my first reaction was that it was the tranny acting up as it seems to only happen just out of park (ie: 1st and Rev) im not sure if it continues after the engine warmed up or not... will check shortly

  3. #3
    Sr. Apprentice Schwindle is a glorious beacon of light
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    Hmmm... sounds similar.
    KYLE

    Washington
    2002 Chevy Tahoe Z71 5.3L V8
    Diablosport Performance Programmer
    6" Tuff Country Lift, 20" Ultra's, 35" TOYO Open Country A/T's
    Jet Performance TBS, K&N Cold Air Intake, Magnaflow Cat-Back Exhaust

    BLACK BETTY

  4. #4
    Legend Z71_guy is a splendid one to behold
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    Default

    Quote Originally Posted by Schwindle View Post
    Lately when I start my hoe it seems like the engine stutters. It stops after the engine warms up. But it seems like the longer it sits or the colder it is outside the worse it is. I was told it may be the plugs but I replaced both plugs and wires and have seen no change. Any ideas???

    sounds like a intake gasket problem, my truck did the same thing in the winter
    when its cold turn it on and spray some carb cleaner around the intake gasket sealing area and listen for changes in RPM if it jumps then you found your problem and they are cake to do

    2003 Z71 Silverado LS
    Access roll up cover
    Bed Rails
    Billet Grill insert
    Bed Rug
    CB with PA system
    Waiting to be installed
    Two 8in RF HX2 punch( would have 12s but they got stolen)

  5. #5
    Sr. Apprentice Schwindle is a glorious beacon of light
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    Default

    Quote Originally Posted by Z71_guy View Post
    sounds like a intake gasket problem, my truck did the same thing in the winter
    when its cold turn it on and spray some carb cleaner around the intake gasket sealing area and listen for changes in RPM if it jumps then you found your problem and they are cake to do
    Well I do have that problem my service engine light came on. I had it diagnosed and it said I was running too lean meaning I had a vacuum leak. I sprayed some brake cleaner around the gasket and the RPMs did change but that only happened recently and I thought it was because I had taken the throttle off to install a spacer that didnt fit. But this problem has been occurring even before I took the throttle off. Maybe the problem was there before I meddled with it. Ill take it off, reseal it, and Ill let you know. Thanks for the info...
    KYLE

    Washington
    2002 Chevy Tahoe Z71 5.3L V8
    Diablosport Performance Programmer
    6" Tuff Country Lift, 20" Ultra's, 35" TOYO Open Country A/T's
    Jet Performance TBS, K&N Cold Air Intake, Magnaflow Cat-Back Exhaust

    BLACK BETTY

  6. #6
    Legend Z71_guy is a splendid one to behold
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    just to be clear im talking about the intake manifold gasket not the throttle body gasket

    2003 Z71 Silverado LS
    Access roll up cover
    Bed Rails
    Billet Grill insert
    Bed Rug
    CB with PA system
    Waiting to be installed
    Two 8in RF HX2 punch( would have 12s but they got stolen)

  7. #7
    Newbie jdubg23 is a glorious beacon of light
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    doesnt seem to matter if my engine is hot or cold... i will try the manifold gasket trick.

  8. #8
    Sr. Apprentice Schwindle is a glorious beacon of light
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    Quote Originally Posted by Z71_guy View Post
    just to be clear im talking about the intake manifold gasket not the throttle body gasket
    Oh ok yeah Ill have to check that out. Thanks for clarifying.
    KYLE

    Washington
    2002 Chevy Tahoe Z71 5.3L V8
    Diablosport Performance Programmer
    6" Tuff Country Lift, 20" Ultra's, 35" TOYO Open Country A/T's
    Jet Performance TBS, K&N Cold Air Intake, Magnaflow Cat-Back Exhaust

    BLACK BETTY


 

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