For 1990-2009 cars

#### Special Tools

EN 46109 Guide Pin Set

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