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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1496 (Engine Mechanical - 5.3L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Engine Valley Cover Removal

Engine Valley Cover Removal

WARNING: This page is about a different car, the 2003 GMC Envoy XL and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the knock sensor wire harness.
    Fig 1: Removing Knock Sensor Wire Harness
    G02129349Courtesy of GENERAL MOTORS CORP.
  2. Remove the knock sensors.
    Fig 2: Removing Knock Sensors
    G02129350Courtesy of GENERAL MOTORS CORP.
  3. Remove the valley cover bolts.
  4. Remove the valley cover and gasket.
  5. Discard the valley cover gasket.
    Fig 3: Removing Valley Cover And Gasket
    G02129351Courtesy of GENERAL MOTORS CORP.
  6. Remove the knock sensor oil seals (1) from the cover (2).
    Fig 4: Removing Knock Sensor Oil Seals From Cover
    G02129352Courtesy of GENERAL MOTORS CORP.
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