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

Trying to identify this part

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Old Mar 31, 2018 | 02:44 PM
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Default Trying to identify this part

I can't locate this item in my FSM, it's on the passenger side if the intake manifold. Looks like vacuum lines connected to it, but one end is broken off and looks like I need a replacement.
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Old Mar 31, 2018 | 02:53 PM
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Its a vacuum check valve, It lets it pull & hold vacuum.https://www.summitracing.com/parts/r...SABEgIMifD_BwE

Last edited by ex-x-fire; Mar 31, 2018 at 02:57 PM.
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Old Mar 31, 2018 | 03:04 PM
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Thanks!
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Old Mar 31, 2018 | 03:12 PM
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Think is is part of the HVAC vacuum operation system.
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Old Apr 1, 2018 | 05:08 PM
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I stumbled upon this a very long time ago and I believe you have '93. Here's routing and GM Part # for you. I would imagine the part # has been replaced and there's very generic used most often. An OE/GM at the time I believe would have come with the elbow connector. I'm quite sure routing is correct.

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Old Apr 1, 2018 | 08:57 PM
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That seems to be where they always break. Mine did also. Dan
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Old Apr 3, 2018 | 03:41 AM
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pretty much a generic part - try dorman #47150 - about $5 or $6 at just about any parts house. fairly sure a GM OE parts are discontinued, but they do show up on fleabay from time to time - i'm thinking they're running about $20. try part number 14056648.



BTW - running the dorman part on my 85 - no issues.

Last edited by Joe C; Apr 3, 2018 at 03:48 AM.
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