Nissan Pathfinder: Exhaust System - Exhaust System (Periodic Maintenance). Exhaust System (Removal and Installation)

• Exhaust System (Periodic Maintenance)
• Exhaust System (Removal and Installation)

Exhaust System (Periodic Maintenance) Nissan Pathfinder

Checking Exhaust System

Check exhaust pipes, muffler and mounts for improper attachment, leaks, cracks, damage or deterioration. Repair or replace as necessary.

Exhaust System (Removal and Installation) Nissan Pathfinder 2022

Exploded View

Removal and Installation

WARNING:

• Perform the procedure with the exhaust system fully cooled down because the system will be hot just after the engine is turned off.

• Be careful not to cut your hand on the insulator edges.

CAUTION:

• Use genuine NISSAN exhaust system parts or equivalent, which are specifically designed for heat resistance, corrosion resistance, and shape.

• Do not apply oil or grease to mounting rubber or damage may occur. If necessary, use soapy water to lubricate mounting rubber.

REMOVAL

1. Remove the front under cover (RH/LH). Refer to Removal and Installation.

2. Remove exhaust system components using power tool.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Do not reuse gasket.

• Do not reuse ring gasket.

• Do not allow anti-corrosive wax to contact exhaust system components.

• Ensure flexible exhaust tube is free from deformation.

• When installing the insulator avoid large gaps or interference between the insulator and each exhaust pipe.

• Remove deposits from the sealing surface of each connection. Connect them securely to avoid exhaust gas leaks.

• Temporarily tighten the exhaust manifold side nuts and the Nissan Pathfinder vehicle side bolts. Check each part for any interference, and then tighten the nuts and bolts to specification.

• When installing each mounting rubber, avoid twisting or excessive extension in up/down and right/left directions.

• Tighten the bolts without causing interference with the flange.

Exhaust Manifold to Front Exhaust Tube

• Install the seal bearing (2) into the front exhaust tube (1).

  

• When installing the spring (3) and nut (4), check the following:

  • Make sure the spring (3) sits properly on the flange surface by aligning it to the locator dimples.

  • Make sure the stud (5) does not contact the inside of the flange bolt hole.

    CAUTION:

    Do not damage seal bearing surface when installing.

• Compact spring by tightening nut.

  CAUTION:

  • Make sure springs are seated correctly on the flange.

  • Assemble the seal bearing so that the nut is located in the center of the flare flange hole without contact with the flange.

Inspection

Check clearance between tail tube and exhaust finisher built in to rear bumper is even.

With engine running, check exhaust tube joints for gas leakage and unusual noises.

Check to ensure that mounting brackets and mounting rubbers are installed properly and free from undue stress. Improper installation could result in excessive noise and vibration.

Unit Disassembly and Assembly. Cylinder Block ++Transaxle & Transmission