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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 906 (Engine Mechanical - 4.3L (LU3)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Oil Pan Replacement (4WD) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Transmission Cover
GM334324
  1. Disconnect the negative battery cable.
  2. Remove the oil level indicator.
  3. Remove the front differential assembly. Refer to DIFFERENTIAL CARRIER ASSEMBLY REPLACEMENT in Front Drive Axle
  4. Remove the starter. Refer to STARTER MOTOR
  5. Remove the transmission cover.
  6. Remove the oil pan drain plug and drain the engine oil into a suitable container.
  7. Remove the remote oil filter pipe adapter. Refer to Oil Filter Adapter Replacement .
    8. Fig 2: View Of Remote Oil Filter Inlet & Outlet Hose Clip Bolt
    GM344049
  8. Remove the bolt holding the remote oil filter inlet and outlet hose clip to the oil pan.
    9. Fig 3: Locating Clip & Stud Securing Cooler Line To Engine
    GM449304
  9. Remove the stud holding the bracket for the starter wire harness and if equipped, the transmission oil cooler pipes.
    10. Fig 4: Locating Access Plugs For Oil Pan Rear Nuts
    GM331034
  10. Remove the access plugs for the oil pan rear nuts.
    11. Fig 5: Transmission To Oil Pan Bolts
    GM477866
  11. Remove the transmission to oil pan bolts (automatic transmission shown).
    12. Fig 6: Engine Oil Level Sensor
    GM387460
  12. Remove and discard the engine oil level sensor (if applicable)
    IMPORTANT: The low oil level sensor is not reusable. Use a NEW low oil sensor.
    13. Fig 7: Locating Oil Pan Bolts & Nuts
    GM330559
  13. Remove the oil pan bolts and nuts.
    14. Fig 8: View Of Oil Pan
    GM330568
  14. Remove the oil pan.
    15. Fig 9: View Of Oil Pan Gasket
    GM387757
  15. Remove the oil pan gasket.
  16. Discard the oil pan gasket.
  17. Clean all sealing surfaces on the engine and the oil pan.
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