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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1224 (Engine Mechanical - 3.8L (On-Vehicle)) >> Repair Instructions >> Oil Pan Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE .
  2. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (L36)  or Fuel Injector Sight Shield Replacement (L67) .
  3. Disconnect the intake air temperature (IAT) sensor electrical connector.
  4. Remove the air inlet duct from the throttle body.
  5. Remove the right and the left engine mount struts. Refer to Engine Mount Strut Replacement - Right  and Engine Mount Strut Replacement - Left ,
  6. Install the engine support fixture. Refer to Engine Support Fixture .
  7. Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE .
  8. Remove the right exhaust manifold pipe stud nuts from the catalytic converter.
  9. Drain the engine oil and remove the oil filter. Refer to Engine Oil and Oil Filter Replacement .
  10. Remove the power steering oil cooler pipe brackets from the frame.
  11. Disconnect the oil level sensor electrical connector.
  12. Remove the oil level sensor wiring harness bolt and reposition the oil level sensor wiring harness.
    Fig 1: Catalytic Converter
    G01703345Courtesy of GENERAL MOTORS CORP.
  13. Remove the Engine mount lower nuts from the engine mount.
  14. Lower the vehicle.
  15. Use the engine support fixture to raise the engine.
  16. Raise the vehicle.
    Fig 2: Engine Mount Lower Nuts
    G01703346Courtesy of GENERAL MOTORS CORP.
  17. Remove the left engine mount bracket bolts from the engine.
    Fig 3: Left Engine Mount Bracket Bolts
    G01703347Courtesy of GENERAL MOTORS CORP.
  18. Remove the right engine mount bracket bolts from the engine.
  19. Remove the right stabilizer link. Refer to STABILIZER SHAFT LINK REPLACEMENT .
  20. Remove the right ball joint from the steering knuckle. Refer to LOWER CONTROL ARM REPLACEMENT .
  21. Support the frame with jack stands.
  22. Remove the right side frame bolts and loosen the left side frame bolts 5 turns.
  23. Using the jack stands lower the frame.
  24. Remove the engine mount and the bracket from the frame.
  25. Remove the torque converter covers.
    Fig 4: Right Engine Mount Bracket Bolts
    G01703348Courtesy of GENERAL MOTORS CORP.
    NOTE: Remove the oil level sensor, located in the oil pan, before the oil pan is removed. The sensor may be damaged if the oil pan is removed first.
  26. Remove the oil level sensor.
    Fig 5: Oil Level Sensor
    G01703349Courtesy of GENERAL MOTORS CORP.
  27. Remove the oil pan bolts.
  28. Remove the oil pan.
    Fig 6: Oil Pan
    G01703350Courtesy of GENERAL MOTORS CORP.
  29. Remove the oil pump pipe screen assembly and the oil pan gasket.
  30. Clean the following parts:
    • Oil pump screen mating surfaces.
    • Oil pan flanges
    • Oil pan rail
    • Front cover
    • Rear main bearing cap
    • Threaded holes
      Fig 7: Oil Pan Gasket
      G01703351Courtesy of GENERAL MOTORS CORP.
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