CTS V8-5.7L VIN P (2004)
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Oil Pick Up/Strainer: Service and Repair
Oil Pump, Pump Screen and Deflector Replacement
Removal Procedure
1. Remove the engine front cover.
2. Remove the engine oil pan.
3. Remove the oil pump screen bolt and nut.
4. Remove the oil pump screen and O-ring seal.
5. Remove the O-ring seal from the pump screen.
6. Discard the O-ring seal.
7. Remove the remaining crankshaft oil deflector nuts.
8. Remove the crankshaft oil deflector.
9. Remove the oil pump bolts.
Important: Do not allow dirt or debris to enter the oil pump, cap the ends as necessary.
10. Remove the oil pump.
11. Clean and inspect the oil pump.
Installation Procedure
Important: Inspect the engine block oil gallery passages. These surfaces must be clear and free of debris or restrictions.