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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1618 (Engine Mechanical - 4.3L) >> 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 Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the water pump. Refer to WATER PUMP REPLACEMENT (4.3L ENGINE) .
  2. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
  3. Remove the oil pan. Refer to Oil Pan Replacement .
  4. Remove the engine shield bolts and shield.
    Fig 1: Engine Shield & Bolts
    G02105933Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the crankshaft position (CKP) sensor electrical connector (5).
    Fig 2: Crankshaft Position (CKP) Sensor Electrical Connector
    G02105934Courtesy of GENERAL MOTORS CORP.
  6. Remove the CKP sensor bolt and sensor.
    Fig 3: CKP Sensor Bolt & Sensor
    G02105935Courtesy of GENERAL MOTORS CORP.
  7. Remove and discard the CKP sensor O-ring seal.
    Fig 4: CKP Sensor O-Ring Seal
    G02105936Courtesy of GENERAL MOTORS CORP.
  8. Remove the front cover bolts.
    IMPORTANT: After the composite front cover is removed do not reinstall the front cover. Always install a NEW front cover.
  9. Remove and discard the front cover.
  10. Clean all sealing surfaces.
    Fig 5: Front Cover & Bolts
    G02105937Courtesy of GENERAL MOTORS CORP.
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