GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1351909  Size: SH
  1. Remove and discard the oil filter adapter gasket (1).
  2. Remove and inspect the heat shield bolts (9).
  3. Remove and inspect the heat shield (8).
  4. Remove and inspect the oil pressure switch (7).
  5. Remove and discard the oil pressure switch O-ring (6).
  6. Remove and inspect the bypass hole plug (5).
  7. Remove and inspect the oil filter fitting (3).
  8. If necessary, remove and inspect the oil filter bypass valve (4).