GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2004 🢒 Alero 🢒 Engine 🢒 Engine Mechanical - 2.2L (L61) 🢒 Lower Crankcase Removal

    Object Number: 412435 Size: SH
  1. Remove the crankshaft position sensor.
  2. Inspect the crankshaft position sensor for damage and replace, if necessary.
  3. Remove the bedplate perimeter bolts.

    4. Important: Do not forget the 2 outside rear bolts.

  4. Remove and discard the crankshaft bearing bolts.
  5. Using the pry-points and an appropriate prying tool, gently separate the upper and lower crankcase.