GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Engine 🢒 Engine Mechanical - 8.1L 🢒 Oil Filter Adapter Removal

    Object Number: 452375 Size: SH
  1. Using a hex wrench, loosen the oil filter fitting.

    2. Object Number: 471026 Size: SH
  2. Remove the oil filter fitting.
  3. Inspect the oil filter fitting.
  4. Replace the oil filter fitting, if necessary.

    5. Object Number: 471143 Size: SH
  5. Remove the oil bypass valves, if required. Unstake the tangs on the oil bypass valves and remove with long nose pliers.
  6. Discard the oil bypass valves, if removed.