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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 909 (Engine Exhaust System) >> Repair Instructions >> Exhaust Manifold Replacement - Right >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise the vehicle. Refer to JACKING AND LIFTING in General Information.
  2. Disconnect the exhaust pipe from the exhaust manifold. Refer to Exhaust Manifold Pipe Replacement   .
  3. Lower the vehicle.
  4. Remove the bolt for the oil level indicator tube.
    NOTE: Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug boot only. Do not pull on the spark plug wire or the wire could be damaged.
  5. Remove the spark plug wires from the spark plugs.
    1. 5.1. Rotate the spark plug wire boot 1/2 turn.
    2. 5.2. Pull outward on the spark plug wire boot to release from the spark plug.
      Fig 1: Removing Oil Level Indicator Tube Bolt
      G01979408Courtesy of GENERAL MOTORS CORP.
  6. Remove the spark plug wires from the spark plug wire retainers.
  7. Remove the exhaust manifold bolts.
  8. Remove the spark plug wire shields and the exhaust manifold.
  9. Remove and discard the exhaust manifold gaskets.
  10. Clean all gasket surfaces. Refer to EXHAUST MANIFOLD CLEANING AND INSPECTION in Engine Mechanical - 4.3L Unit Repair.
    Fig 2: Removing Exhaust Manifold Gaskets
    G01979409Courtesy of GENERAL MOTORS CORP.
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