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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 2098 (Engine Mechanical) >> Intake Manifold Collector >> Removal and Installation >> Removal

Removal and Installation: Removal

WARNING: This page is about a different car, the 2008 Nissan Maxima. 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.
CAUTION: 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. Refer to "COWL TOP ".
  2. Remove the windshield wiper assembly. Refer to "WIPER MOTOR AND LINKAGE ".
  3. Remove the engine cover using power tool.
  4. Remove air cleaner case upper and mass air flow sensor, and air intake tube as an assembly. Refer to "REMOVAL AND INSTALLATION ".
  5. Partially drain the coolant when the engine is cool. Refer to "DRAINING ENGINE COOLANT ".
  6. Disconnect the following:
    • Power brake booster vacuum hose
    • Coolant hoses from the intake manifold collector
    • Swirl control vacuum lines to power valve and intake manifold collector (upper)
    • Fuel injector electrical connectors
    • PCV hose
    • Electric throttle control actuator electrical connector
    • EVAP canister purge hose
    CAUTION:
    • Cover any engine openings to avoid the entry of any foreign material.
    Fig 1: Engine Cover With Torque Specifications
    G04886353Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Disconnect the power steering hose bracket from the rear 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
  10. Remove the vacuum tank.
  11. Remove the intake manifold collector (lower) support bracket from the back of the intake manifold collector (lower) using power tool.
  12. Loosen the intake manifold collector (lower) bolts in the order as shown using power tool, and remove the intake manifold collector (lower) and gasket.
    Fig 2: Identifying Intake Manifold Collector (Lower) Bolts With Loosening Sequence
    G04904579Courtesy of NISSAN MOTOR CO., U.S.A.
  13. If necessary, remove the electric throttle control actuator bolts in the order as shown and remove the electric throttle control actuator.
    CAUTION:
    • Handle carefully to avoid any shock to the electric throttle control actuator.
    • Do not disassemble.
    Fig 3: Identifying Electric Throttle Control Actuator Bolts
    G04904580Courtesy of NISSAN MOTOR CO., U.S.A.
  14. If necessary, remove the intake manifold collector (upper) bolts in the order as shown, using power tool and remove the intake manifold collector (upper).
    • →: Engine front
    CAUTION: Handle carefully to avoid any shock to the electric throttle control actuator, if installed.
    Fig 4: Identifying Upper Intake Manifold Collector Pipe Bolts With Loosening Sequence
    G04904581Courtesy of NISSAN MOTOR CO., U.S.A.
  15. If necessary, remove power valve bolts in the order as shown and remove the power valve.
    NOTE: The power valve must be held in the closed position during installation.
    Fig 5: Identifying Power Valve Bolts
    G04914673Courtesy 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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