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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1468 (Engine Exhaust System) >> Repair Instructions >> Exhaust Manifold Heat Shield Replacement >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement in Engine Controls - 4.2L.
  2. Remove the secondary air injection (AIR) solenoid valve. Refer to Secondary Air Injection (AIR) Solenoid Valve Replacement in Engine Controls - 4.2L.
  3. Remove the oil level indicator tube. Refer to Oil Level Indicator and Tube Replacement .
  4. Remove the oxygen sensor from the exhaust manifold. Refer to Heated Oxygen Sensor Replacement - Position 1 in Engine Controls - 4.2L.
    5. Fig 1: Removing/Installing Heat Shield
    GM637629Courtesy of GENERAL MOTORS CORP.
  5. Remove the 4 manifold heat shield nuts and remove the heat shield.
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