Nissan Armada 2025-2026 Service and Repair Manual: Removal and Installation

WARNING:

REMOVAL

Remove engine cover. Refer to Removal and Installation.

Remove air inlet tube (1 and 2). Refer to Removal & Installation.

Remove electric throttle control actuator as follows:Drain engine coolant from radiator or attach plug to prevent engine coolant leakage when engine coolant is not drained. Refer to ENGINE COOLANT : Draining.

CAUTION:

• Perform this step when engine is cold.

• Never spill engine coolant on drive belt.

Disconnect water hoses from electric throttle control actuator. When engine coolant is not drained from radiator, attach plug to water hoses to prevent engine coolant leakage. Disconnect electric throttle control actuator harness connector. Loosen mounting bolts in the order from 4 to 1 as shown in the figure.

CAUTION:

Handle carefully to avoid any shock to electric throttle control actuator.

NOTE:

The figure shows the electric throttle control actuator viewed from the air inlet tube 2 side.

Remove gasket.

Disconnect blow-by hose 1 (bank 1) and blow-by hose 2 (bank 1) and EVAP hose 1 from intake manifold.

Remove EVAP canister purge volume control solenoid valve harness connector.

Remove EVAP resonator and bracket 2.

Disconnect the manifold absolute pressure sensor harness connector.

Remove blow-by hose 1 (bank 1) and blow-by hose 2 (bank 1).

Loosen mounting bolts in the order from 8 to 1 as shown in the figure to remove intake manifold.

: Engine front

Remove gasket (bank 1 and bank 2).

Remove following parts, if necessary.

• Manifold absolute pressure sensor

• EVAP canister purge volume control solenoid valve

INSTALLATION

Note the following, and install in the reverse order of removal.

Intake Manifold

• Tighten mounting bolts to the torque specified below in the order from 1 to 8 as shown in the figure.

  

  :	25.0 N·m (2.6 kg-m, 18 ft-lb)

  : Engine front

Electric Throttle Control Actuator

• Tighten to the torque specified below in the order from 1 to 4 as shown in the figure.

  

  :	9.0 N·m (0.92 kg-m, 80 in-lb)

  NOTE:

  The figure shows the electric throttle control actuator viewed from the air inlet tube 2 side.

• Perform the “Idle Air Volume Learning” and “Throttle Valve Closed Position Learning” when harness connector of electric throttle control actuator is disconnected.

  • Idle Air Volume Learning: Refer to Work Procedure.

  • Throttle Valve Closed Position Learning: Refer to Work Procedure.