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Home >> Cadillac >> 2009 >> XLR V8-4.4L SC >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Positive Crankcase Ventilation >> PCV Valve Hose >> Service and Repair
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PCV Valve Hose: Service and Repair




Positive Crankcase Ventilation Hose/Pipe/Tube Replacement

Removal Procedure




1. Release the lock tab (1) when disconnecting the positive crankcase ventilation (PCV) tube connections.




2. Disconnect the fresh air PCV tube (1) from the fitting on the underside of the supercharger inlet duct, during the removal procedure of the front section of the supercharger inlet duct assembly. Refer to Supercharger Inlet Duct Assembly Replacement (Supercharger Inlet Duct Assembly Replacement).




3. Disconnect the PCV fresh air tube (1) from the left camshaft cover.




4. Disconnect the PCV foul air tube (1) from the PCV orifice fitting on the right camshaft cover.
5. Remove the supercharger assembly. Refer to Supercharger Replacement (Supercharger Replacement).




6. Remove the PCV foul air tube from the fitting on the underside of the supercharger assembly.

Installation Procedure




1. Connect the PCV foul air tube to the fitting on the underside of the supercharger assembly.
2. Install the supercharger assembly. Refer to Supercharger Replacement (Supercharger Replacement).




3. Connect the PCV foul air tube (1) to the PCV orifice fitting on the right camshaft cover.




4. Connect the PCV fresh air tube (1) to the left camshaft cover.




5. Connect the fresh air PCV tube (1) to the fitting on the underside of the supercharger inlet duct, during the installation procedure of the front section of the supercharger inlet duct assembly. Refer to Supercharger Inlet Duct Assembly Replacement (Supercharger Inlet Duct Assembly Replacement).

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