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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 976 (Engine Controls - 6.6L (Lb7) (Introduction)) >> Repair Instructions >> Boost Sensor Replacement (California Emissions) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Loosen the outlet duct clamp at the upper intake manifold cover.
  2. Remove the upper intake manifold cover from the outlet duct.
  3. Remove the upper intake manifold cover.
    4. Fig 1: View Of Upper Intake Manifold Cover, Outlet Duct & Clamp
    GM813243Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the boost sensor electrical connector (1).
  5. Remove the boost sensor bracket bolt (4).
    6. Fig 2: Turbocharger Boost Sensor Electrical Connector
    GM788842Courtesy of GENERAL MOTORS CORP.
  6. Disconnect the vacuum line from the sensor.
  7. Remove the boost sensor and bracket.
  8. Remove the bracket from the sensor.
  9. Inspect the boost sensor seal for damage, replace as necessary.
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