Thread: Secondary Air pump & valve
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Old 02-03-2009, 05:50 PM
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The part in the upper right on the diagram with no number is usually the problem when you have a faulty secondary air pump. That valve does 2 things, it opens up to allow circulation when the pump is needed. More important is what it does when you shut down. When you shut down that valve has to be closed. If it's not closed moisture will get into the secondary air pump and cause it to fail.

Check the vacuum hose to the valve, they are common to crack.
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