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Home >> Volvo >> 2009 >> S80 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Engine Control Module (ECM) - Specifications, Other >> Engine Control Module (ECM) (B8444S; 2007-2010) >> Description Of Activations >> Component/Function >> Leak Diagnostic Unit, Valve

Leak Diagnostic Unit, Valve

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A clicking noise is heard from the valve in the leak diagnostic unit at activation.