Removal Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

Oil Filler Cap - Remove
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Intake Manifold Cover Bolt (1) - Remove
Intake Manifold Cover (2) - Remove
Install the oil filler cap after removal of the intake manifold cover to prevent debris from falling into the engine.
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CAUTION:
The Positive Crankcase Ventilation (PCV) line is tamper resistant and must always be replaced once it is removed. The fittings connected to the PCV line must also be replaced if they are damaged when the PCV line is removed. To reduce the risk of damage to the fittings, use a suitable cutting tool and carefully cut the connections away.

Using a suitable cutting tool, carefully cut the 2 positive crankcase ventilation tube connectors (1).
Positive Crankcase Ventilation Fresh Air Tube (2) - Remove and DISCARD
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Turbocharger Wastegate Actuator Vacuum Tank Solenoid Valve Tube (1) - Disconnect and reposition - Plastic Collar Quick Connect Fitting Service
Air Cleaner Outlet Duct Clamp (2) - Loosen
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Charge Air Bypass Valve Hose Clamp (1) - Loosen
Charge Air Bypass Valve Hose (2) - Reposition
Retainer Spring (3) - Disengage
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Auxiliary Air Cleaner Outlet Duct (1) - Remove
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Air Cleaner Outlet Duct Bracket Bolt (1) - Remove [2x]
Retainer (2) - Remove [2x]
Oil Level Indicator Tube (3) - Reposition
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Air Cleaner Outlet Resonator Bracket (1) - Remove