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Home >> Cadillac >> 2017 >> XTS Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 3.6L (LFX LF3) - Repair Instructions - Off Vehicle >> Repair Instructions - Off Vehicle >> Oil Pump Disassemble

Oil Pump Disassemble

    Fig 1: Identifying Oil Pump Mounting Bolts
    GM1579176Courtesy of GENERAL MOTORS COMPANY
    IMPORTANT:

    There are no serviceable components within the oil pump. Disassemble the pump only to diagnose an oiling concern. A disassembled oil pump must not be reused. A disassembled oil pump must be replaced.

  1. Remove the oil pump mounting bolts.
    2. Fig 2: View Of Oil Pump Mounting Bolts
    GM1579177Courtesy of GENERAL MOTORS COMPANY
  2. Remove the primary camshaft drive chain lower guide bolts.
  3. Remove the primary camshaft drive chain lower guide.
    4. Fig 3: View Of Oil Pump Cover Bolts
    GM1579178Courtesy of GENERAL MOTORS COMPANY
  4. Remove the bolts holding the oil pump cover to the oil pump housing.
    5. Fig 4: View Of Oil Pump Housing & Cover
    GM1579180Courtesy of GENERAL MOTORS COMPANY
  5. Remove the oil pump cover from the oil pump housing.
    6. Fig 5: Inner & Outer Rotors In Oil Pump Cover
    GM1579181Courtesy of GENERAL MOTORS COMPANY
  6. Remove the inner oil pump drive gear.
  7. Remove the outer oil pump driven gear.
    8. Fig 6: Identifying Oil Pressure Relief Valve Components
    GM1579182Courtesy of GENERAL MOTORS COMPANY
  8. Remove the clip, holding the cap, for the oil relief valve components.
  9. Remove the cap, spring, and plunger from the oil pump housing.
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