Inspection Procedure

WARNING: This page is about a different variant/trim than selected.

Fig 1: Identifying Exterior Of Engine Front Cover Inspection Locations (LF4)
Courtesy of GENERAL MOTORS COMPANY

Inspect the exterior of the engine front cover for the following conditions:
- Damage to the water pump bolt hole threads (7)
- Gouges or damage to the water pump sealing surfaces (6)
- Damage to the crankshaft front oil seal bore (5)
- Damage to the camshaft position actuator valve oil seal bores (1)
- Damage to the engine front cover bolt holes (2)
- Damage and/or corrosion to the engine coolant passage (3)
- Dents or damage to the exterior (4)
Fig 2: Identifying Interior Of Engine Front Cover Inspection Locations (LF4)
Courtesy of GENERAL MOTORS COMPANY

Inspect the interior of the engine front cover for the following conditions:
- Gouges or damage to the engine front cover sealing surfaces to the engine block (6), oil pan (4), and/or camshaft covers (2)
- Damage and/or corrosion to the engine coolant passage (5)
- Damage to the crankshaft front oil seal bore
- Gouges or damage to the O-ring sealing areas
- Gouges or damage to the water pump seal area (3)
- Damage to the engine front cover bolt holes (1)
Repair or replace the engine front cover as necessary.