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Re: Intake problem?
Checked the PCV and it was good, had vacuum at the grommet in the valve cover. Decided to pull the intake and found that the intake gasket had slipped allowing the vacuum to pull through the oil return ports into the valve covers. The new Felpro gaskets are bonded to a metal strip which will prevent the gasket from slipping.
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Frank
1998 Silverado Z71
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