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Sticky Throttle

This is a discussion on Sticky Throttle within the External Engine forums, part of the LSx Technical Help Section category; I had my throttle ported from some guy and now its very sticky...what can it be?and I made sure its ...

  1. #1
    Member JattGunMan's Avatar
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    Sticky Throttle

    I had my throttle ported from some guy and now its very sticky...what can it be?and I made sure its clean...also the idle hangs when slowing down

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    Member kev70ss's Avatar
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    I had the same problem when i got mine ported. It could be that the tb was over ported. If the opening around the blade is too big it will cause a high idle.

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    there is an idle adjustment screw under your throttle cable that you can adjust down to compensate for the over ported throttle body.

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    Member JattGunMan's Avatar
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    but the car seems to idle normal at start but maybe 5 out of 10 times it will hold the idle after coming to a stop...

    do you guys know what that metal bevel shaped thing is in the tps sensor on the shaft? cus when i pulled it out it was all bent!!i tried to fix it but idkkk

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    Member kev70ss's Avatar
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    when you rev it does the idle hang?

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    Member JattGunMan's Avatar
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    Quote Originally Posted by kev70ss View Post
    when you rev it does the idle hang?
    Yea it falls down really slowly will hang in a spot for a bit and eventually drops to normal

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    Member kev70ss's Avatar
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    Sounds like the same thing my car was doing. I contacted the guy who ported my TB and he swapped it out for a new one. Once i got my new one it ran perfect. Try holing your TB up to the light and it you see large cracks between the body and the blade it might be over ported.

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    Member JattGunMan's Avatar
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    cool I will check that. i might have him get me a new one

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    Member JattGunMan's Avatar
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    Well I tried everything and still no luck I tried to adjust the blade but it didnt help.. I even tried to start it without the tps on and still it sticks....ANd It only sticks with the car running..

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    Member ApexVIII's Avatar
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    Quote Originally Posted by JattGunMan View Post
    Well I tried everything and still no luck I tried to adjust the blade but it didnt help.. I even tried to start it without the tps on and still it sticks....ANd It only sticks with the car running..
    did the guy half shaft it?

    i am sure he did, he did not do everything... there is one thing you need to do when the half shaft is done so it will not stick
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    Ok so old post but...

    I have the exact problems of JattGunMan:

    I can feel it stick as I press the gas pedal, every time. It will often hang at a high idle and eventually return to normal.

    I ported the TB myself so obviously screwed it up a little. Seems like it sticks when you remove the shaft because now the screws don't get aligned perfectly. Any hopes to fix mine or should I be looking for a new one?

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