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Thread: TBI TPS Screw Size?

  1. #1
    Carb and Points!
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    Nov 2016
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    TBI TPS Screw Size?

    Anyone know the screw size and thread count/pitch of the torx screws that hold on the throttle position sensor to the throttle body? I’ve misplaced them. Thanks

    p.s. Off a ‘92 Caprice 5.0L if it makes a difference.

  2. #2
    LT1 specialist steveo's Avatar
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    Aug 2013
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    i'm not 100% sure that your TBI is the same, but they really like to use an M4.5x7.5 screw for their TPS sensors

    insanely hard to find to say the least

  3. #3
    Electronic Ignition!
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    Quote Originally Posted by steveo View Post
    i'm not 100% sure that your TBI is the same, but they really like to use an M4.5x7.5 screw for their TPS sensors

    insanely hard to find to say the least
    Good afternoon, Gents -

    For most any GM fastener, I've had great success with Northland Fasteners: http://shop.northlandfasteners.com/main.sc

    I hope this helps.

  4. #4
    Carb and Points!
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    Nov 2016
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    In case anyone need to know in the future, turns out they are 10-32 thread about 1/2 inch long.

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