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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1497 (Engine Mechanical - 4.2L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Oil Pan Cleaning and Inspection

Oil Pan Cleaning and Inspection

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Clean the oil pan in solvent. Remove all sludge and debris from the oil pan.
    IMPORTANT: Do not use a motorized tool or bristle disc to clean this component.
  2. Remove all sealing material from the oil pan rails.
  3. Inspect the oil pan sealing surfaces for nicks or damage. Remove any minor nicks with a fine flat file.
  4. Inspect the threads in the oil drain plug hole.
  5. Replace the oil pan if necessary.
    Fig 1: Inspecting Oil Pan Sealing Surfaces For Nicks Or Damage
    G02128766Courtesy of GENERAL MOTORS CORP.
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