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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 - Right >> 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: Rear Exhaust Manifold & Gasket
    GM946726Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Whenever the oxygen sensor is removed, coat the threads with nickel-based anti-seize compound such as SA P/N 21485279 (or equivalent). Never use silicon products, silicon products will cause damage to oxygen sensor.
  1. Transfer the 02 sensor to the manifold if the manifold is being replaced.

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

  2. Install the new manifold gasket on the cylinder head.
  3. Install the exhaust manifold.
  4. Install the exhaust manifold nuts except for the outer nuts that will hold the heat shield to the manifold.

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

  5. Fig 2: Exhaust Heat Shield
    GM964386Courtesy of GENERAL MOTORS CORP.
  6. Install the exhaust heat shield.
  7. Install the exhaust manifold heat shield nuts and bolt.

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

    Tighten:  Tighten the exhaust manifold heat shield bolt - L81 to 25 N.m (15 lb ft)

  8. Connect the 02 sensor connector near the rear of the engine.
  9. Fig 3: View Of Stabilizer Bar Clamps, Bushings & Bolts
    GM929945Courtesy of GENERAL MOTORS CORP.
  10. Install the right hand stabilizer bar to frame bolts.

    Tighten:  Tighten the stabilizer bar-to-frame bolts - L81 to 50 N.m (37 lb ft).

  11. Fig 4: View Of Stabilizer Shaft & Link
    GM927949Courtesy of GENERAL MOTORS CORP.
    NOTE: Do not allow the stud to rotate when removing or installing the right hand stabilizer nut. Secure the stud with a wrench while removing or installing the nut to prevent damage to the link.
  12. Install the new nuts, left and right hand stabilizer bar to stabilizer link and tighten.

    Tighten:  Tighten the stabilizer link nuts - L81 to 65 N.m (48 lb ft).

  13. Fig 5: Rear Exhaust Manifold Down Pipe Assembly
    GM927888Courtesy of GENERAL MOTORS CORP.
  14. Install the rear exhaust manifold down pipe assembly. Refer to Exhaust Manifold Pipe Replacement (L81)  or Exhaust Manifold Pipe Replacement (L61) .
  15. Fig 6: Middle Exhaust Manifold
    GM933620Courtesy of GENERAL MOTORS CORP.
  16. Lower the vehicle.
  17. Attach the 02 electrical connector to bracket.
  18. Install the middle exhaust manifold nut.

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

  19. Re-position the purge valve to the intake manifold.
  20. Install the outlet resonator/duct assembly into position.
  21. Tighten the clamp at the throttle body assembly into position.
  22. Position the outlet resonator/duct assembly to support bracket and install the bolts.

    Tighten:  Tighten outlet resonator/duct assembly-to-support bracket bolts - L81 10 N.m (89 lb in).

  23. Tighten the clamp at the air cleaner assembly.