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throttle sticking "help"

This is a discussion on throttle sticking "help" within the General Help forums, part of the LSx Technical Help Section category; I just took out my 99 SS since it has been in storage and drove it around and noticed when ...

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    Dynamic duo naperws6's Avatar
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    throttle sticking "help"

    I just took out my 99 SS since it has been in storage and drove it around and noticed when I remove my foot off the throttle at around 40 mph the car does not slow down so I put the car in nuetral its a automatic and rpm is around 1900 rpm. When I stop at at a light or stop sign the car is at idle around 700 rpm which is normal. What sensor or part could it be? has anyone experienced this before?? I'm thinking IAC sensor but I don't want to buy it and it not fix problem. The car is bonestock except for a lid and k&n. any input would will be helpful thanks in advance.

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    Smiles for 9.5 Years cammed goat's Avatar
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    Clean your throttlebody and spray your MAF with MAF cleaner. Also, remove the IAC and clean that with either MAF cleaner or brake cleaner. Keep us posted.


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    Quote Originally Posted by cammed goat View Post
    Clean your throttlebody and spray your MAF with MAF cleaner. Also, remove the IAC and clean that with either MAF cleaner or brake cleaner. Keep us posted.
    no love for the TPS ?

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    Dynamic duo naperws6's Avatar
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    thanks I had the throttle body cleaned last october when I had 2 belts installed and my buddy noticed the throttle body was dirty. I will try cleaning maf and iac. later today

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    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Quote Originally Posted by naperws6 View Post
    thanks I had the throttle body cleaned last october when I had 2 belts installed and my buddy noticed the throttle body was dirty. I will try cleaning maf and iac. later today
    Just be sure to do as Cammed Goat suggested and use MAF cleaner not just whatever. CRC MAF cleaner is what most of use use it seems. I us it as well. Regular brake cleaner or degreasers can kill your MAF..
    Last edited by Smittro; 03-15-2010 at 09:59 AM.
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    Dynamic duo naperws6's Avatar
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    Quote Originally Posted by smittro View Post
    just be sure to do as cammed goat suggested and use maf cleaner not just whatever. Crc maf cleaner is what most of use use it seems. I us it as well. Regular brake cleaner or degreasers can kill your maf..
    thank you.

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    Moderator Cutlass's Avatar
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    PCV system vacuum leaks can also cause the RPMs to hang, but 1900 is pretty high for a vacuum leak

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    Dynamic duo naperws6's Avatar
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    Quote Originally Posted by Cutlass View Post
    PCV system vacuum leaks can also cause the RPMs to hang, but 1900 is pretty high for a vacuum leak
    The rpms drop back down to 700 rpm when I stop at a light or stop sign.

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