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

85 throttle body linkage leak

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Old Aug 8, 2018 | 07:16 PM
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Default 85 throttle body linkage leak

I have been chasing an air leak since doing my manifold gaskets. I was cleaning the throttle body when I blew can air into the small hole inside by the butterfly. I noticed
air bubbles coming out of the linkage between tps sensor and body where the linkage rotated. Just to confirm that is not normal and I have worn my throttle body out.
Thanks for tips
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Old Aug 8, 2018 | 07:43 PM
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According to the Haynes manual, the throttle body is not serviceable and must be replaced.
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Old Aug 8, 2018 | 11:10 PM
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Haven't had that so I'm going to go with getting a new one. Some have rebuilt it but not sure how good it is or worth it.
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Old Aug 8, 2018 | 11:27 PM
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Well after todays recheck on all things above the intake, I noticed the bubbles because I sprayed cleaner all over. Then drying with can air I noticed bubbles.. Before intake gasket replace it seemed ok but I had several loose screws so it must have been leaking in a few spots. I will try smoke test now that I am making progress. Car is ok but I am trying to perfect the idle.
Thx

Last edited by xrav22; Aug 9, 2018 at 10:46 AM.
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