GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 GMC Sierra Denali 🢒 Engine 🢒 Engine Mechanical - 4.8L, 5.3L, and 6.0L 🢒 Oil Pump Disassemble

    Object Number: 1402152 Size: SH

    Important: The internal parts of the oil pump assembly are not serviced separately, excluding the spring. If the oil pump components are worn or damaged, replace the oil pump as an assembly.

  1. Remove the oil pump cover bolts (408).
  2. Remove the oil pump cover (409).

    3. Important: Mark or identify the gears for assembly. Refer to Separating Parts .

  3. Remove the drive gear (410).
  4. Remove the driven gear (412).
  5. Remove the pressure relief valve plug (416).
  6. Remove the pressure relief valve spring (415).
  7. Remove the pressure relief valve (414).
  8. Inspect the oil pump components. Refer to Oil Pump Cleaning and Inspection .