C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Dec 9, 2011 | 12:08 PM
  #21  
78IndyPace's Avatar
78IndyPace
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From: Buena Vista Colorado
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Originally Posted by MrJlr
...Mine pop up durring WOT.....
That's a symptom of a bad check valve, which is easy to test.

Remove your check valve, put the port that is normally connected to the intake manifold through the filter to your lips and try to blow through it. If you CAN blow through it, the check valve is bad and it should be replaced.
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Old Dec 9, 2011 | 12:47 PM
  #22  
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I never know on my 73 which one's coming up first. Me and my buddies get together and after a few beers we place bets on which one. It's always around a 50/50 chance!!
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Old Dec 10, 2011 | 11:58 AM
  #23  
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MrJlr
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From: Chino CA
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Originally Posted by 78IndyPace
That's a symptom of a bad check valve, which is easy to test.

Remove your check valve, put the port that is normally connected to the intake manifold through the filter to your lips and try to blow through it. If you CAN blow through it, the check valve is bad and it should be replaced.


awesome....I'll check that out !

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