For 1990-2009 cars

#### Special Tools

EN 46109 Guide Pin Set

### Removal Procedure

1. Remove the front cover. Refer to Engine Front Cover Replacement.
2. Reinstall the engine support fixture. Refer to Engine Support Fixture.
3. Raise engine using support fixture until oil pan will clear.
4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
5. Drain the engine oil and remove the oil filter. Refer to Engine Oil and Oil Filter Replacement.
6. Remove the catalytic converter. Refer to Catalytic Converter Replacement - Left Side.
7. Remove the air conditioning (A/C) compressor. Refer to Air Conditioning Compressor Replacement.
8. Remove the transmission bellhousing bolts.
9. Remove the oil pan bolts.
10. Remove the oil pan.
11. Clean the oil pan and the engine block gasket surface. Refer to Oil Pan Cleaning and Inspection.

### Installation Procedure

1. Install the 8 mm (0.315 in) guides from the EN 46109 into the center oil pan rail bolt hole on each side of the engine block.
2. Place a 3 mm (0.118 in) bead (1) of RTV sealant, GM P/N 12378521 (Canadian P/N 88901148) or equivalent, on the block pan rail and the crankshaft rear oil seal housing.
3. Position the oil pan onto the block.
4. Remove the EN 46109 8 mm (0.315 in) guides from the engine block.
5. Loosely install the oil pan bolts.

Notice: Refer to Fastener Notice in the Preface section.

6. Tighten the oil pan bolts in sequence shown.

Tighten

1. Tighten the 8 mm bolts (1-11) to 23 N·m (17 lb ft).
2. Tighten the 6 mm bolts (12, 13) to 10 N·m (89 lb in).

7. Install the air conditioning (A/C) compressor. Refer to Air Conditioning Compressor Replacement.
8. Install the catalytic converter. Refer to Catalytic Converter Replacement - Left Side.
9. Lower the vehicle. Refer to Lifting and Jacking the Vehicle.
10. Refill the engine oil. Refer to Engine Oil and Oil Filter Replacement.
11. Install the right side engine mount. Refer to Engine Mount Replacement - Right Side.
12. Remove the engine support fixture. Refer to Engine Support Fixture.
13. Install the front cover. Refer to Engine Front Cover Replacement.