Inspection Procedure
WARNING: This page is about a different car, the 2020 Buick Regal and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect each camshaft cover for the dents or damage to the exterior. A dented or damaged camshaft cover may:
- Leak engine oil
- Affect crankcase ventilation
- Interfere with the camshafts
- Interfere with the ignition coil sealing
- Allow water or condensation to enter the engine
Inspect the exterior of the right camshaft cover for the following conditions:
- Damage to the camshaft position actuator solenoid valve bolt hole (1).
- Damage to the camshaft cover bolt holes (2)
- Damage to the mounting holes (3) for the ignition coil assembly and fuel injector sight shield ballstud.
- Damage to the camshaft position sensor bolt hole (4).
- Damage to the spark plug shield seal bore (5)
- Damage to the valve rocker arm oil control valve bolt hole (6).
- Damage to the oil fill hole (7)
- Damage to the positive crankcase ventilation (PCV) hose connector (8) -A damaged PCV hose connector is not replaceable.
NOTE:Not servicable - cam cover must be removed to replace PCV check valve. Can't service check valve alone (tangs will break on removal thus leaving foreign material in engine)
Inspect the interior of the right camshaft cover for the following conditions:
- Gouges or damage to the spark plug shield seal bore (1)
- Gouges or damage to the camshaft cover sealing groove (2)
- Damaged, loose or missing baffle (3)
Inspect the exterior of the left camshaft cover for the following conditions:
- Damage to the mounting holes (1) for the ignition coil assembly
- Gouges or damage to the spark plug shield seal bore (2)
- Damage to the camshaft position actuator solenoid valve bolt hole (3).
- Damage to the valve rocker arm oil control valve bolt hole (4).
- Damage to the camshaft position sensor bolt hole (5).
- Damage to the camshaft cover bolt holes (6)
Inspect the interior of the left camshaft cover for the following conditions:
- Gouges or damage to the spark plug shield seal bore (1)
- Gouges or damage to the camshaft cover sealing groove (2)
- Damaged, loose or missing baffle (3)
- Damage to the positive crankcase ventilation (PCV) hose connector (8) -A damaged PCV hose connector is not replaceable.
NOTE:Not servicable - cam cover must be removed to replace PCV check valve. Can't service check valve alone (tangs will break on removal thus leaving foreign material in engine)
- Repair or replace the camshaft cover or covers as necessary.