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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1018 (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 2004 GMC Sierra and 2004 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) in Engine Cooling.
  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.
    5. Fig 1: View Of Engine Protection Shield
    GM349061Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the crankshaft position (CKP) sensor electrical connector (5).
    6. Fig 2: View Of Oil Level Sensor Electrical Connector, CKP Electrical Connector & Battery Ground Bolt
    GM782731Courtesy of GENERAL MOTORS CORP.
  6. Remove the CKP sensor bolt and sensor.
    7. Fig 3: View Of CKP Sensor & Bolt
    GM11485Courtesy of GENERAL MOTORS CORP.
  7. Remove and discard the CKP sensor O-ring seal.
    8. Fig 4: View Of Crankshaft Position Sensor Seal O-Ring
    GM387759Courtesy of GENERAL MOTORS CORP.
  8. Remove the front cover bolts.
    9. 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. Fig 5: Removing Front Cover
    GM869732Courtesy of GENERAL MOTORS CORP.
  10. Clean all sealing surfaces.
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