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Removal and Installation: Removal

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
  • To avoid the danger of being scalded, never drain the coolant when the engine is hot.
  • The gasket for intake manifold collector (upper) is secured together with intake manifold collector (lower) bolt. Thus, when replacing only the upper gasket the lower gasket must also be replaced.
  1. Remove the cowl top and cowl top extension.
  2. Remove the engine cover using power tool.
  3. Remove upper air cleaner case, mass air flow sensor, and air cleaner to electric throttle control actuator tube as an assembly.

    Refer to Removal and Installation .

  4. Partially drain the coolant when the engine is cool.
  5. Disconnect the following:
    • Power brake booster vacuum hose
    • Coolant hoses from the intake manifold collector
    • Vacuum lines from the upper intake manifold collector and power valve
    • Fuel injector electrical connectors
    • PCV hose
    • Electric throttle control actuator electrical connectors
    • EVAP canister purge hose
    • EGR temperature sensor electrical connector
    CAUTION:
    • Cover any engine openings to avoid the entry of any foreign material.
    Fig 1: Removing Cowl Top And Cowl Top Extension & Torque Specifications
    G00776170Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Remove the EGR tube (to lower intake manifold collector) nuts.
  7. Disconnect the power steering hose bracket from the back of the intake manifold collector.
  8. Remove the EVAP canister purge volume solenoid valve bracket bolt. Position the valve aside.
  9. Remove the VIAS control solenoid valve bracket bolt. Position the valve aside.
  10. Remove the vacuum tank.
  11. Remove the intake manifold collector support bracket from the back of the intake manifold collector using power tool.
  12. Loosen the intake manifold collector bolts in the order shown using power tool, and remove the intake manifold collector and gasket.
    Fig 2: Loosening Intake Manifold Collector Bolts
    G00776171Courtesy of NISSAN MOTOR CO., U.S.A.
  13. If necessary, remove the electric throttle control actuator bolts in the order shown and remove the electric throttle control actuator.
    Fig 3: Removing Electric Throttle Control Actuator
    G00776172Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION:
    • Handle carefully to avoid any shock to the electric throttle control actuator.
    • Do not disassemble.
  14. If necessary, remove the intake manifold collector (upper) bolts in the order shown, using power tool and remove the intake manifold collector.
    Fig 4: Removing Intake Manifold Collector (Upper) Bolts
    G00776173Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION: Handle carefully to avoid any shock to the electric throttle control actuator, if installed.
  15. If necessary, remove power valve bolts in the order shown and remove the power valve.
    Fig 5: Removing Power Valve Bolts
    G00776174Courtesy of NISSAN MOTOR CO., U.S.A.
  16. If necessary remove the following components:
    • Vacuum tank
    • VIAS control solenoid valve
    • EVAP canister purge volume control solenoid valve
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