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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1444 (Engine Mechanical - 5.3L (Lm4)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Oil Pan Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 Chevrolet TrailBlazer, and 2004 Buick Rainier. 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 in Engine Electrical.
  2. Remove the oil level indicator tube. Refer to Oil Level Indicator and Tube Replacement  .
    3. Fig 1: Securing Front Differential To Frame
    GM893104Courtesy of GENERAL MOTORS CORP.
  3. If equipped with 4WD, remove the front differential and secure to the frame. Refer to Differential Carrier Assembly Replacement (4.8L, 5.3L, 6.0L V-8) In Front Drive Axle.
  4. If equipped with 2WD, remove the steering gear. See REMOVAL PROCEDURE .
  5. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement  .
    6. Fig 2: View Of Transmission Oil Cooler Lines
    GM871551Courtesy of GENERAL MOTORS CORP.
  6. Remove the transmission oil cooler lines from the retainer.
    7. Fig 3: View Of Transmission Oil Cooler Line Retaining Bracket & Bolt
    GM901495Courtesy of GENERAL MOTORS CORP.
  7. Remove the transmission oil cooler line retaining bracket bolt and bracket.
  8. Remove the starter. Refer to Starter Motor Replacement (5.3L Engine) in Engine Electrical.
  9. Remove the Flywheel inspection cover from the left side of the transmission.
    10. Fig 4: View Of Battery Cable Channel & Bolt
    GM899616Courtesy of GENERAL MOTORS CORP.
  10. Remove the battery cable channel bolt from the front of the oil pan.
  11. Remove the battery cable channel from the oil pan.
    12. Fig 5: View Of A/C Compressor Bracket Bolts
    GM871561Courtesy of GENERAL MOTORS CORP.
  12. Loosen the 2 upper air conditioning (A/C) compressor bracket bolts (4).
  13. Remove the 2 lower A/C compressor bracket bolts (3).
    14. Fig 6: View Of Lower Bellhousing Bolts
    GM899342Courtesy of GENERAL MOTORS CORP.
  14. Remove the 2 lower bellhousing bolts.
    15. Fig 7: View Of Oil Pan & Bolts
    GM898133Courtesy of GENERAL MOTORS CORP.
  15. Remove the oil pan bolts.
  16. Remove the oil pan by tilting the rear of the oil pan down to clear the transmission, pull the oil pan rearward past the front wire harness, then lower the oil pan clear of the vehicle.
    17. IMPORTANT: The oil pan gasket is reusable. It is NOT necessary to remove the oil pan gasket unless damaged.
    Fig 8: Drilling Out Pan Gasket Retaining Rivets
    GM384699Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: DO NOT allow foreign material to enter the oil passages of the oil pan, cap or cover the openings as required.
  17. Drill out the oil pan gasket retaining rivets (2), if required.
  18. Remove the gasket (1) from the pan.
  19. Discard the gasket and rivets.
  20. Clean and inspect the oil pan. Refer to Oil Pan Cleaning and Inspection  .
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