Chevrolet Sonic Repair Manual: Oil Pressure Relief Valve Replacement

Removal Procedure

1. Remove the oil pan. Refer to Oil Pan Replacement.



2. Remove the oil pressure relief valve closure bolt (1).
3. Remove the oil pressure relief valve assembly (2).
4. Separate the piston (3) and the spring (4).

Warning:

Bodily injury may occur if the cleaning solvent is inhaled or exposed to the skin.

Warning:

To avoid eye injury, use approved safety lenses, goggles, or face shield when using buffing and cleaning equipment.

5. Clean the parts.
6. Inspect the parts.
7. Clean the thread.

Installation Procedure

1. Install the piston (3) and the spring (4).
2. Install the oil pressure relief valve assembly (2).

Caution:

Refer to Fastener Caution.

3. Install the oil pressure relief valve closure bolt (1) and tighten to  21 Y (16 lb ft)

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4. Install the oil pan. Refer to Oil Pan Replacement.