Thread: Does anyone know how to test a Vacuum Control Valve?
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Old 09-25-2008, 11:37 AM
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Biodiesel300TD Biodiesel300TD is offline
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Join Date: Dec 2004
Location: Albany, OR
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Quote:
Originally Posted by tangofox007 View Post
Why should a valve that leaks by design hold vacuum?
Becuase it's not suppose to leak down at idle. It will hold vac. It only leaks down when you use the throttle.
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