C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

IAC Idle Adjustment Screw Size??

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Old Apr 14, 2003 | 09:29 PM
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MarkLT1
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St. Jude Donor '04
Default IAC Idle Adjustment Screw Size??

Does anyone know off hand, the size torx bit the idle adjustment screw in the throttle body is??? And, how the heck do you fit it in there?? There isnt much room at all..
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Old Apr 14, 2003 | 09:55 PM
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Default Re: IAC Idle Adjustment Screw Size?? (MarkLT1)

If memory serves me... its either a 15 or 20. I used a cheap t-handle torx driver with a wad of paper stuffed into the fitment end to make the torx bit stick out more so I could fit it in the hole because the socket end of the torx driver was too thick to fit. Plus, the torx bit I used was a long throw type.
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