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Home >> Cadillac >> 1997 >> Catera >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Engine Mechanical - 3.0L V6 - VIN [R]) >> Removal & Installation >> Oil Cooler >> Removal

Oil Cooler: Removal

WARNING: This page is about a different car, the 1999 Cadillac Catera and 1998 Cadillac Catera. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support the vehicle.
  2. Drain the engine oil and remove the oil filter housing.
  3. Loosen the oil cooler outlet (1) and the inlet (2) lines from engine block. See Fig 1.
  4. Lower the vehicle.
  5. Remove the intake plenum. See INTAKE PLENUM .
  6. Remove the intake manifold. See INTAKE MANIFOLD & SPACER .
  7. Disconnect the following electrical connectors from the water crossover:
    • The engine coolant temperature sender (2).
    • The engine coolant temperature sensor (4). See Fig 2.
  8. Remove the water crossover bolts (1).
  9. Remove the water crossover upper and lower seals (2). See Fig 3.
  10. Loosen the upper heat shield bolts on the left side of the exhaust manifold. See Fig 4.
  11. Remove the oil cooler outlet line from the engine oil cooler. See Fig 5.
  12. Remove the oil cooler inlet line from the engine oil cooler.
  13. Note the positioning of the 4 seals. See Fig 6.
  14. Position oil feed and return lines aside and secure with mechanic wire.
  15. Remove the engine oil cooler inlet and outlet nuts (1). See Fig 7.
  16. Remove the engine oil cooler cover bolts (2).
  17. Remove the engine oil cooler cover.
  18. Remove the engine oil cooler.
  19. Clean all sealing surfaces.
Fig 1: Removing/Installing Oil Cooler Lines At Engine Block
G00215804Courtesy of GENERAL MOTORS CORP.
Fig 2: Removing Electrical Connectors From Coolant Sensor/Sender
G00215805Courtesy of GENERAL MOTORS CORP.
Fig 3: Removing/Installing Water Crossover
G00215806Courtesy of GENERAL MOTORS CORP.
Fig 4: Removing Left Exhaust Manifold Heat Shield
G00215807Courtesy of GENERAL MOTORS CORP.
Fig 5: Removing Oil Cooler Inlet & Outlet Lines
G00215808Courtesy of GENERAL MOTORS CORP.
Fig 6: Exploded View Of Oil Cooler & Seals
G00215809Courtesy of GENERAL MOTORS CORP.
Fig 7: Removing/Installing Oil Cooler Inlet/Outlet Nuts & Cover Bolts
G00215810Courtesy of GENERAL MOTORS CORP.
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