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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1771 (Engine Exhaust) >> Repair Instructions >> Exhaust Manifold Replacement - Left >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Exhaust Manifold Assembly
    GM946718Courtesy of GENERAL MOTORS CORP.
  1. Install a new manifold gasket on the cylinder head.
  2. Install the exhaust manifold.
  3. Install the exhaust manifold nuts.

    Tighten:  Tighten the exhaust manifold nuts - L81 to 20 N.m (15 lb ft).

  4. Fig 2: Front Down Pipe Assembly
    GM927884Courtesy of GENERAL MOTORS CORP.
  5. Install the front down pipe assembly. Refer to Exhaust Manifold Pipe Replacement (L81)  or Exhaust Manifold Pipe Replacement (L61) .
  6. Install the A/C compressor to A/C bracket.

    Tighten:  Tighten the A/C compressor-to-bracket bolt - L81 to 22 N.m (16 lb ft).

  7. Connect the electrical connector at the A/C compressor and pressure transducer.
  8. Fig 3: Using 15 mm Wrench To Rotate Tensioner Pulley Clockwise
    GM898882Courtesy of GENERAL MOTORS CORP.
  9. Install the accessory drive belt around the pulleys.
  10. Install the right hand splash shield.
  11. Lower the vehicle.
  12. Fig 4: Oil Level Indicator & Tube
    GM946737Courtesy of GENERAL MOTORS CORP.
  13. Install the oil level indicator and tube.

    Tighten:  Tighten the coolant extension pipe/engine lift bracket bolt - L81 to 20 N.m (15 lb ft).

  14. Fig 5: Connecting Front 02 Sensor Electrical Connector At Side Of Engine
    GM960298Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Whenever the oxygen sensor is removed, coat the threads with nickel-based anti-seize compound such as Permatex® 77124, SA P/N 21485279 (or equivalent). Never use silicon products, silicon products will cause damage to oxygen sensor.
  15. Install the 02 sensor into the exhaust manifold.

    Tighten:  Tighten the oxygen sensor-to-exhaust manifold pipe - L81 to 45 N.m (33 lb ft).

  16. Connect the 02 sensor electrical connector at the side of engine. Assure the connector is fully retained to the bracket