GM Service Manual Online
For 1990-2009 cars only

    Object Number: 178312  Size: SH
  1. Remove the crankshaft position sensor (4) and the one bolt.
  2. Remove the following components from the cylinder block:
  3. • Fourteen engine oil pan bolts
    • Two nuts
    • The engine oil pan (3)

    Object Number: 178313  Size: SH
  4. Remove the following components from the cylinder block:
  5. • The bolt that retains the oil pump strainer bracket
    • The oil pump strainer bolt
    • The oil pump strainer (2)
  6. Remove the oil pump strainer seal (3).
  7. Clean the inside of the engine oil pan and of the oil pump strainer screen.
  8. Clean the mating surfaces of the engine oil pan and of the cylinder block.