STS RWD V8-4.6L (2007)
Important: The sealant must not block the drain back hole. Blockage of the drain back hole can lead to oil leakage.
9. Apply the sealant GM P/N 12378521 (Canadian P/N 88901148) to the bore outer diameter in the block. Ensure the sealant does not block the
drain hole.
Important: Apply steady even pressure to the EN-48072 applicator housing.
10. Using a suitable tool spread the sealant within the bore to ensure an even coating across the bore.
