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Nissan Sentra B18 (2020-2025) Service Manual: Egr Cooler

Exploded View

Exploded View

1.

Vacuum delay valve bracket

2.

EGR cooler bracket

3.

EGR outlet tube

4.

EGR volume control valve gasket

5.

EGR volume control valve

6.

Clamp

7.

Water hose

8.

Water pipe

9.

Clamp

10.

Water hose

11.

EGR inlet tube gasket

12.

EGR inlet tube

13.

EGR inlet tube heat shield

14.

EGR cooler

15.

EGR cooler gasket

A.

Refer to Removal and Installation.

B.

Refer to Removal and Installation.

C.

To intake manifold. Refer to Exploded View.

D.

To electric throttle control actuator. Refer to Exploded View.

E.

To water hose. Refer to Exploded View.

    

, : Indicates that the part is connected at points with the same symbol in actual Nissan Sentra vehicle.

Removal and Installation

Removal and Installation

REMOVAL

Partially drain the engine coolant. Refer to Draining.

Remove the front suspension member. Refer to Removal and Installation.

Remove the EGR inlet tube heat shield.

Unbolt and reposition the exhaust manifold cover. Refer to Exploded View.

Remove the EGR inlet tube.

CAUTION:

Do not reuse EGR inlet tube gaskets.

Remove the EGR volume control valve. Refer to Removal and Installation.

Remove the water hoses from the EGR cooler.

Remove bolts and remove the EGR cooler.

CAUTION:

Do not reuse EGR cooler gasket.

Remove the EGR cooler bracket using the following procedure (if necessary): Remove the vacuum delay valve bracket bolts and reposition the vacuum delay valve bracket. Remove the bolts securing the water pipe and reposition the water pipe. Remove bolts and remove the EGR cooler bracket.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

Do not reuse EGR inlet tube gasket or EGR cooler gasket.

  • When installing the EGR cooler, use the following procedure:

    • Hand tighten the EGR cooler bolts in the sequence shown.

    • Tighten the EGR cooler bolts to the specified torque in the sequence shown.

      EGR cooler bolts

      : 25.0 N·m (2.6 kg-m, 18 ft-lb)

  • Refill engine coolant. Refer to Refilling.

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