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Home >> Cadillac >> 2004 >> CTS Base, 3.6 7 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Mechanical - 3.2L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Oil Cooler and Oil Cooler Cover Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the intake manifold. Refer to Intake Manifold Replacement .
  2. Remove the water crossover. Refer to Coolant Crossover Pipe Replacement (LA3, LY9) in Engine Cooling.
    3. Fig 1: Identifying Ports To The Cylinder Head
    GM159490Courtesy of GENERAL MOTORS CORP.
  3. Remove the following from the engine oil cooler:
    • The oil cooler inlet fitting
    • The oil cooler outlet fitting
    4. Fig 2: Exploded View Of Oil Cooler Lines
    GM159495Courtesy of GENERAL MOTORS CORP.
  4. Note the positioning of the 4 seals.
  5. Remove the oil cooler lines from the engine. Refer to Oil Cooler Line Replacement .
    6. Fig 3: Removing & Installing Engine Oil Cooler Inlet & Outlet Nuts & Engine Oil Cooler Cover Bolts
    GM159494Courtesy of GENERAL MOTORS CORP.
  6. Remove the engine oil cooler inlet and outlet nuts (1).
  7. Remove the engine oil cooler cover bolts (2).
    8. Fig 4: Exploded View Of Engine Oil Cooler
    GM769020Courtesy of GENERAL MOTORS CORP.
  8. Remove the engine oil cooler cover.
  9. Remove the engine oil cooler from the engine.
  10. Clean the cylinder block mating surfaces.
  11. Clean and inspect the oil cooler. Refer to Oil Cooler Cleaning and Inspection .
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