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Nissan Sentra B18 (2020-2025) Service Manual: Vacuum Pump

Exploded View

Exploded View

1.

Vacuum tube

2.

Clamp

3.

Vacuum hose A

4.

Vacuum pump

5.

Vacuum hose B

A.

To vacuum hose. Refer to Exploded View.

B.

Refer to Removal and Installation.

Removal and Installation

Removal and Installation

REMOVAL

Remove the battery. Refer to Removal and Installation (Battery).

Remove vacuum hose from vacuum pump. Refer to Exploded View.

Remove vacuum hose B from vacuum pump.

Loosen vacuum pump bolts in reverse of the sequence shown.

Insert a suitable tool at location (A) and separate the vacuum pump (1) from the cylinder head.

CAUTION:

  • Do not damage the mating surface.

  • The liquid gasket used at the factory is very strong. Pry only in the area shown.

  • Do not disassemble vacuum pump.

Remove the vacuum tube using the following procedure (if necessary): Remove vacuum hose A from intake manifold. Remove harness retainer (A) from vacuum tube (1). Remove bolts securing the vacuum tube. Remove the vacuum tube, vacuum hose A and vacuum hose B towards the passenger side.

INSTALLATION

Apply a continuous bead of liquid gasket (D) with a suitable tool to the vacuum pump (1) as shown.

CAUTION:

  • The components must be installed within 5 minutes of the liquid gasket application.

  • Do not re-tighten bolts after the 5 minutes have elapsed.

  • Use Genuine Silicone RTV Sealant or equivalent. Refer to Recommended Chemical Products and Sealants.

(A)

: View A

(B)

: 1.5 mm (0.059 in)

(C)

: 4.0 - 5.0 mm (0.157 - 0.197 in)

: Vacuum pump outside

Install the vacuum pump and tighten bolts to the specified torque in the sequence shown.

Vacuum pump bolts

: 10 N·m (1.0 kg-m, 89 in-lb)
Note:

Make sure to align the tabs (A) on the back of the vacuum pump with the recesses (B) in the signal plate [INT (1)].

Installation of the remaining components is in the reverse order of removal.

CAUTION:

Since a check valve is built-in inside of vacuum hose A, install vacuum hose A with arrow towards intake manifold.

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