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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 851 (Engine Exhaust System - 5.7L) >> Repair Instructions >> Exhaust Manifold Replacement - Right >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Fuel Rail Cover
    GM651872Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel rail cover.
  2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
    3. Fig 2: Exhaust Manifold & Nuts
    GM676192Courtesy of GENERAL MOTORS CORP.
  3. Remove the exhaust manifold nuts. (left side shown, right side similar)
    4. Fig 3: Oxygen Sensor Electrical Connector & CPA Lock
    GM676532Courtesy of GENERAL MOTORS CORP.
  4. Remove the connector position assurance (CPA) lock.
  5. Disconnect the oxygen sensor electrical connector.
    NOTE: Refer to Oxygen Sensor Notice in Cautions and Notices.
  6. Remove the oxygen sensor.
  7. Lower the vehicle.
    8. Fig 4: Right/Left Check Valve, AIR Injection Pipe Hose & AIR Pipe
    GM651875Courtesy of GENERAL MOTORS CORP.
  8. Remove the hose clamp at the right check valve.
  9. Remove the secondary air injection (AIR) pipe hose (1) from the right check valve.
    10. Fig 5: Rear Left Cylinder Head, AIR Pipe & Bolt
    GM651878Courtesy of GENERAL MOTORS CORP.
  10. Loosen, DO NOT remove the AIR pipe bolt at the rear of the left cylinder head.
    11. Fig 6: Right AIR Pipe Gasket, Bolt & Oil Level Indicator Tube
    GM651877Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Do not remove the check valve from the AIR pipe unless valve service is required.
  11. Remove the AIR pipe bolts.
  12. Reposition the AIR pipe.
  13. Remove the old AIR pipe gasket. Discard the gasket
  14. Remove the oil level indicator tube. Refer to Oil Level Indicator and Tube Replacement in Engine Mechanical - 5.7 L.
    15. Fig 7: Right Ignition Coil Bracket & Studs
    GM697216Courtesy of GENERAL MOTORS CORP.
  15. Remove the ignition coil bracket studs.
  16. Remove the ignition coil bracket.
  17. Remove the spark plugs. Refer to Spark Plug Replacement in Engine Controls - 5.7 L.
    18. Fig 8: Right Exhaust Manifold, Bolts & Gasket
    GM639833Courtesy of GENERAL MOTORS CORP.
  18. Remove the exhaust manifold bolts.
  19. Remove the exhaust manifold, and old gasket. Discard the gasket.
  20. If necessary, remove the exhaust manifold heat shield bolts and shield.
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