GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2005 🢒 DeVille 🢒 Engine 🢒 Engine Mechanical - 4.6L 🢒 Lower Crankcase Removal

    Object Number: 331851 Size: SH
  1. Remove the transaxle brace bolts.
  2. Remove the transaxle brace (1).

    3. Object Number: 880587 Size: SH
  3. Remove the 2 crankshaft position sensors (1, 2).

    4. Object Number: 204167 Size: SH
  4. Remove the 4 lower crankcase perimeter retaining bolts along the right side of the engine.

    5. Object Number: 880592 Size: SH
  5. Remove the 4 lower crankcase perimeter retaining bolts along the left side of the engine.

    6. Object Number: 204586 Size: SH
  6. Remove the main bearing bolts. Note the location of the single stud-end bolt (1) used to attach the oil pump pickup tube.
  7. Remove the oil scraper plate.

    8. Object Number: 1551594 Size: SH
  8. Remove the oil manifold plate bolts.

    9. Object Number: 1551593 Size: SH
  9. Remove the oil manifold plate.

    10. Object Number: 880595 Size: MH

    Notice: Use a plastic pry tool when prying case halves apart to prevent damage to the Upper and Lower Crankcase surface. Do not continue to push the pry tool in the crankcase as the Upper and Lower Crankcase halves separate. This may damage the sealing surface.

  10. Working on either side of the lower crankcase, separate the crankcase halves by alternately prying in the grooves provided until the lower crankcase is free of the dowel pins.

    11. Object Number: 204108 Size: SH
  11. Remove the lower crankcase.

    12. Object Number: 204159 Size: SH
  12. Remove and discard the upper-to-lower crankcase seals.