DeVille V8-4.6L VIN Y (1998)
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Oil Pan: Service and Repair
GM updated the oil pan r/r procedure in TSB 03-06-01-027
REMOVAL PROCEDURE
1. Remove the transmission.
2. Drain the engine oil.
3. Remove thirteen oil pan bolts and remove the pan.
4. The gasket is reusable unless damaged. Do not remove the gasket from the oil pan groove unless replacement is required.
INSTALLATION PROCEDURE
1. Install the new oil pan seal if required by starting the seal into the pan groove and working the seal into the groove in both directions. Once the seal
is exposed to the oil it will expand and no longer stay in the groove without wrinkles. If this condition exists, replace it with a new seal.
2. Position the oil pan to the crankcase.
3. Install thirteen oil pan bolts. Tighten the bolts to 10 Nm (89 inch lbs.) in sequence shown.
NOTICE: Refer to Fastener Notice in Service Precautions.
4. Install the transmission.
5. Refill the engine oil.