Tools Required

EN 46109  Guide Pin Set. See Special Tools .

Fig 1: Identifying EN 46109 Guides
Courtesy of GENERAL MOTORS CORP.
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. See Special Tools .
Fig 2: Sealant Application Locations On Block Pan Rail And The Crankshaft Rear Oil Seal Housing
Courtesy of GENERAL MOTORS CORP.
2. Place a 3 mm (0.118 in) bead 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 (1).
Fig 3: View Of Oil Pan
Courtesy of GENERAL MOTORS CORP.
3. Position the oil pan onto the block.
4. Remove the EN 46109  8 mm (0. See Special Tools .315 in) guides from the engine block.
Fig 4: View Of Oil Pan Bolts
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5. Loosely install the oil pan bolts.
Fig 5: Tightening Oil Pan Bolts
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NOTE: Refer to Fastener Notice in Cautions and Notices.
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).