Colorado 2WD L4-2.8L VIN 8 (2004)
1. Apply a 3 mm (0.12 inch) bead of sealer GM P/N 12378521 (Canadian P/N 88901148) (1) to the following:
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The crankshaft rear oil seal housing, where the housing meets the engine block
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The surface of the crankshaft rear oil seal housing, where the housing meets the oil pan
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The surface of the oil pan, where the oil pan meets the housing
Important: Tilting the crankshaft rear oil seal housing will allow sealer between the housing and the oil pan.
2. Complete the following to install the crankshaft rear oil seal housing:
2.1.
Align the housing with the right alignment dowel, tilting the left side up slightly.
2.2.
Align the housing with the left alignment dowel.
2.3.
Press the housing against the engine block into place.
3. Install the crankshaft rear oil seal housing bolts.
Notice: Refer to Fastener Notice in Service Precautions.
4. Install the 2 oil pan bolts.
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Tighten the crankshaft rear oil seal housing bolts to 10 Nm (89 inch lbs.).
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Tighten the (end) oil pan bolts to 10 Nm (89 inch lbs.).
