LS V8-3.9L VIN A (2003)
1. Install a new gasket.
2. Install the oil pump and tighten the bolts in two stages.
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Stage 1: Tighten to 6 Nm (53 inch lbs.).
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Stage 2: Tighten an additional 90 degrees.
3. Install the timing drive components.
Items 4 and 5: Oil Pump Screen and Pickup Tube Installation Note
1. NOTE: Apply clean engine oil to the O-ring seal prior to installing.
Install the oil pump screen and pickup tube.
Items 1-3: Oil Pan Installation Note
1. NOTE: Make sure all gasket sealing surfaces are clean and dry.
Install a new oil pan gasket and the oil pan. Tighten the bolts in the sequence shown in two stages.
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Stage 1: Tighten to 5 Nm (44 inch lbs.).
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Stage 2: Tighten to 12 Nm (9 ft. lbs.).
