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12-23-2010, 12:07 AM
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Registered User
Join Date: Oct 2009
Location: Houston, Texas
Posts: 8
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Dual Vacuum Check Valves?
'86 305 Silverado.
I don't see these vacuum devices on my hood diagram. I removed them, really can't see the need for them, or is there? They look factory, under what conditions would these operate and why 2? They are identical, flow is from green to black (green side is connected to distributor.) |
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