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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 2222 (Engine Mechanical (VK56DE)) >> Removal And Installation >> Exhaust Manifold And Three Way Catalyst >> Removal and Installation >> Removal

Removal and Installation: Removal

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: Perform the work when the exhaust and cooling system have cooled sufficiently.
  1. Remove the front engine under covers and rear under covers. Refer to "REMOVAL AND INSTALLATION ".
  2. Remove front final drive assembly. Refer to "UNIT REMOVAL AND INSTALLATION ".
  3. Remove the main muffler assembly and center exhaust tube. Refer to "REMOVAL AND INSTALLATION ".
  4. Remove the front exhaust tubes. Refer to "REMOVAL AND INSTALLATION ".
  5. Remove front tires. Refer to "ADJUSTMENT ".
  6. Remove fender covers and protectors. Refer to "REMOVAL AND INSTALLATION OF FRONT FENDER PROTECTOR ".
  7. Remove the LH and RH air fuel ratio A/F sensors.
    • Follow steps below to remove each air fuel ratio A/F sensor.
    1. Remove the harness connector of each air fuel ratio A/F sensor, and harness from bracket and middle clamp.
    2. Remove the air fuel ratio A/F sensors from both LH and RH exhaust manifolds using Tool.

    Tool number: - (J-44626) 

    CAUTION:
    • Do not damage the air fuel ratio A/F sensors
    • Discard any air fuel ratio A/F sensor which has been dropped from a height of more than 0.5m (19.7 in) onto a hard surface such as a concrete floor. Replace it with a new one.
    Fig 1: Removing Air Fuel Ratio A/F Sensors From Both LH And RH Exhaust Manifolds Using Tool
    G04899664Courtesy of NISSAN NORTH AMERICA, INC.
  8. Support the engine using a suitable tool.
  9. Remove the exhaust manifold (LH) (A) following the steps below.
    • <=: Front
    • B: Exhaust manifold (RH)
    1. Remove the engine mounting insulator. Refer to "REMOVAL AND INSTALLATION ".
    2. Remove the exhaust manifold cover.
    3. Remove the engine mounting bracket. Refer to "REMOVAL AND INSTALLATION ".
    4. Loosen the nuts in reverse order as shown using suitable tool.
    5. Remove the exhaust manifold (LH) (A) and discard gasket.
      CAUTION: Discard nuts and studs. Do not reuse.
      Fig 2: Identifying Exhaust Manifold Nuts Tightening Sequence
      G06579351Courtesy of NISSAN NORTH AMERICA, INC.
  10. Remove the exhaust manifold (RH) (B) following the steps below.
    • <=: Front
    • A: Exhaust manifold (LH)
    1. Remove the engine mounting insulator. Refer to "REMOVAL AND INSTALLATION ".
    2. Remove the exhaust manifold cover.
    3. Remove the engine mounting bracket. Refer to "REMOVAL AND INSTALLATION ".
    4. Remove the oil level gauge guide. Refer to "REMOVAL AND INSTALLATION ".
    5. Loosen the nuts in reverse order as shown using suitable tool.
    6. Remove the exhaust manifold (RH) (B) and discard gasket.
    CAUTION: Discard nuts and studs. Do not reuse.
    Fig 3: Identifying Exhaust Manifold Nuts Tightening Sequence
    G06579351Courtesy of NISSAN NORTH AMERICA, INC.
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