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  1. #1
    superchevy247 is offline CHR Member Visit my Photo Gallery
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    Help

     



    I got an 89 Gmc sierra Pickup with a tbi 350 in it i just replaced all the sensors and i can figure out why at idle it sounds like it wants to die and it gets even worse when u put it in gear. When your runnin it though it runs good just when it has a load or sitting at idle it runs like crap. and also what kind of AC DELCO plugs should i run in it
    Last edited by superchevy247; 02-26-2006 at 02:38 PM.

  2. #2
    thesals's Avatar
    thesals is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 66 mustangFB, 69 econline Drag Van
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    after putting in the new sensors did your reset your computer? and also you mide need to adjust the idle screw a little... could also be a timing issue...
    just because your car is faster, doesn't mean i cant outdrive you... give me a curvy mountain road and i'll beat you any day

  3. #3
    superchevy247 is offline CHR Member Visit my Photo Gallery
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    where is the idel screw on a throttle boddie

  4. #4
    thesals's Avatar
    thesals is offline CHR Member Visit my Photo Gallery
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    dont know your setup exactly but ussually its right next to where the accelerator cable connects up
    just because your car is faster, doesn't mean i cant outdrive you... give me a curvy mountain road and i'll beat you any day

  5. #5
    speedyhd is offline CHR Member Visit my Photo Gallery
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    have you checked for vacuum leaks? had a buddy who's truck was doing the same thing, the basket under the throttle body was trashed.

  6. #6
    WRENCHD is offline CHR Member Visit my Photo Gallery
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    you should have tour cat checked to see if it is plugged or starting to plug this will give you this kind of problem also
    dave
    WRENCHD

  7. #7
    NTFDAY's Avatar
    NTFDAY is offline CHR Member Visit my Photo Gallery
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    Quote Originally Posted by WRENCHD View Post
    you should have tour cat checked to see if it is plugged or starting to plug this will give you this kind of problem also
    dave
    That would have been helpful 2 years ago.
    Ken Thomas
    NoT FaDe AwaY and the music didn't die
    The simplest road is usually the last one sought
    Wild Willie & AA/FA's The greatest show in drag racing

  8. #8
    ted dehaan's Avatar
    ted dehaan is offline CHR Member Visit my Photo Gallery
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    the most common problem on those tbi's is the gasket between the tbi and intake manifold they are thin paper and they fail all the time. there is no idle screw its controlled by the computer with the idle air control valve (I.A.C.V.) on the tbi unit...ted
    I'LL KEEP MY PROPERTY, MY MONEY, MY FREEDOM, AND MY GUNS, AND YOU CAN KEEP THE CHANGE------ THE PROBLEM WITH LIBERALISM IS SOONER OR LATER YOU RUN OUT OF OTHER PEOPLES MONEY margaret thacher 1984

  9. #9
    NTFDAY's Avatar
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    Quote Originally Posted by ted dehaan View Post
    the most common problem on those tbi's is the gasket between the tbi and intake manifold they are thin paper and they fail all the time. there is no idle screw its controlled by the computer with the idle air control valve (I.A.C.V.) on the tbi unit...ted
    Like I said, that would have been helpful 2 years ago. Look at the date of the original post.
    Ken Thomas
    NoT FaDe AwaY and the music didn't die
    The simplest road is usually the last one sought
    Wild Willie & AA/FA's The greatest show in drag racing

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