Quote:
Originally Posted by MrsMcNastys
When checking the secondary vacuum pump and line going under the plenum for a vacuum leak, does that same line going to the plenum pull vacuum at idle ?...
i.e. at idle if disconnected the line has engine manifold vacuum, wondering if this indicates a bad reservoir or check valve? Or is that normal?
Ed
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Mine does pull a small amount of vacuum when disconnected from the pump,hope its normal.
