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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine Mechanical - 3.6L (Ly7) (Repair Procedures -- 3 Of 5)) >> Off-Vehicle Repair Instructions - Part 2 >> Oil Pump Disassemble

Oil Pump Disassemble

WARNING: This page is about a different variant/trim than selected.
    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.
    Fig 1: Removing & Installing Oil Pump Mounting Bolts
    GM902918Courtesy of GENERAL MOTORS CORP.
  1. Remove the oil pump mounting bolts.
    2. Fig 2: Removing & Installing Primary Camshaft Drive Chain Lower Guide
    GM902919Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The primary camshaft drive chain lower guide is not a serviceable component. If the primary camshaft drive chain lower guide is to be reused, the primary camshaft drive chain lower guide is not to be removed from the oil pump cover. If the primary camshaft drive chain lower guide must be replaced, the oil pump must be replaced.
  2. Remove the primary camshaft drive chain lower guide bolts.
  3. Remove the primary camshaft drive chain lower guide.
    4. Fig 3: Removing & Installing Oil Pump Cover
    GM902921Courtesy of GENERAL MOTORS CORP.
  4. Remove the bolts holding the oil pump cover to the oil pump housing.
  5. Remove the oil pump cover from the oil pump housing.
    6. Fig 4: Removing & Installing Inner & Outer Oil Pump Drive Gear
    GM902922Courtesy of GENERAL MOTORS CORP.
  6. Remove the inner oil pump drive gear.
  7. Remove the outer oil pump driven gear.
    8. Fig 5: Removing & Installing Cap, Spring & Plunger For The Oil Relief Valve
    GM902923Courtesy of GENERAL MOTORS CORP.
  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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