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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 637 (Engine Mechanical - 3.5L (Unit Repair)) >> Repair Instructions >> Engine Front Cover Cleaning and Inspection >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect the exterior of the engine front cover for the following conditions:
    • Damage to the water pump bolt hole threads (1)
    • Gouges or damage to the water pump sealing surfaces (2)
    • Damage to the drain plug or drain plug hole (3)
    • Damage to the crankshaft front oil seal bore (4)
    • Damage to the engine front cover bolt holes (5)
    • Damage and/or corrosion to the engine coolant passage (6)
    • Dents or damage to the exterior
    Fig 1: Checking Engine Front Cover Exterior
    G01815259Courtesy of GENERAL MOTORS CORP.
  2. Inspect the interior of the engine front cover for the following conditions:
    • Gouges or damage to the engine front cover sealing surfaces (1)
    • Damage and/or corrosion to the engine coolant passage (2, 4, 5)
    • Damage to the crankshaft front oil seal bore (3)
  3. Repair or replace the engine front cover as necessary.
    Fig 2: Checking Engine Front Cover Interior
    G01815260Courtesy of GENERAL MOTORS CORP.
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