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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 >> Engine Front Cover Replacement >> 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.
  1. Remove the engine oil pan. Refer to Oil Pan Replacement   .
  2. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement   .
  3. Remove the water pump. Refer to WATER PUMP REPLACEMENT (4.3L) in Engine Cooling.
  4. Remove the CKP sensor. Refer to CRANKSHAFT POSITION SENSOR in Removal and Installation in Engine Performance.
  5. Remove the crankshaft position sensor seal (O-ring).
  6. Discard the crankshaft position sensor seal (O-ring).
    Fig 1: Removing Crankshaft Position Sensor Seal
    G01977556Courtesy of GENERAL MOTORS CORP.
  7. Remove the engine front cover bolts.

    Important:  After the composite engine front cover is removed do not reinstall the engine front cover. Always install a NEW engine front cover.

  8. Remove the engine front cover.
  9. Discard the engine front cover.
  10. Clean all sealing surfaces.
    Fig 2: Removing Engine Front Cover
    G01977557Courtesy of GENERAL MOTORS CORP.