Nissan Maxima Service and Repair Manual: Vacuum lines

Exploded View

1. Clamp
2. Installation arrow
3. Vacuum hose
4. Vacuum pipe
5. Clip
1. To intake manifold
2. To brake booster Front

Removal and Installation

REMOVAL

1. Disconnect the vacuum hose from the brake booster.
2. Disconnect the vacuum hose from the intake manifold.
3. Release the clips and remove the vacuum pipe with the vacuum hoses attached.
4. Remove the vacuum hoses from the vacuum pipe.

INSPECTION AFTER REMOVAL

Visual Inspection

Check for correct installation, damage and deterioration of the vacuum hoses and pipe.

Valve Air-tightness Check

• Connect a suitable tool (hand vacuum pump) at each end of the vacuum hose to inspect the check valve operation.
• Replace the vacuum hose component or check valve if out of specification

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Because the vacuum hose contains a check valve, the vacuum hose must be installed in the correct position for proper operation. Refer to the stamp on the end of the vacuum hose to confirm correct installation. The brake booster will not operate normally if the vacuum hose with the check valve is installed in the wrong direction.
• Insert the vacuum pipe into the vacuum hose at least 24 mm (0.94 in) as shown.
• Do not use lubricating oil during installation.