For 1990-2009 cars

1. Apply a 5.5 mm (0.22 in) bead of sealer GM P/N 12378521 (Canadian P/N 88901148) or equivalent, to the oil pan in areas marked (1).
2. Apply a 3 mm (0.12 in) bead of sealer GM P/N 12378521 (Canadian P/N 88901148) to the oil pan area marked (2).

Note: The oil pan must be installed within 10 minutes from when the sealer was applied.

3. Install the oil pan.
4. Install the oil pan bolts.

Note: When installing the oil pan, it could be shifted front or back a little which could cause a transmission alignment problem. The back of the oil pan needs to be flush with the block.

5. Check the oil pan alignment. Use a straight edge on the back of the block and oil pan (transmission mounting surface).

Caution: Refer to Fastener Caution in the Preface section.

6. Tighten the oil pan bolts.

6.1. | Tighten the (side) oil pan bolts to 25 N·m (18 lb ft).

6.2. | Tighten the (end) oil pan bolts to 10 N·m (89 lb in).