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Nissan Armada 2025-2026 Service and Repair Manual: Exhaust System

Nissan Armada 2025-2026 Service and Repair Manual / Engine / Exhaust System

Exhaust System

Commercial Service Tool

Tool name   Description
Power tool

Loosening bolts and nuts

Exhaust System

Inspection

WARNING:

  • Jacking up or lift up the vehicle may the vehicle height to go down which cause a personal injury and/or damage to the air suspension component parts. Refer to Precaution for when Jacking and Lifting Up the vehicle with Electronic Air Suspension System.

Check exhaust pipes, muffler and mounting for improper attachment, leakage, cracks, damage or deterioration.

  • If damage is found, repair or replace damaged parts.

Exhaust System

Exploded View

Mounting rubber 1 Main muffler Mounting rubber 2
Gasket Mounting bracket Mounting rubber 3
Rear muffler Mounting rubber 4    
To catalyst. Refer to Exploded View.        
: N·m (kg-m, ft-lb)
: Always replace after every disassembly.
: Indicates that the parts is connected at points with same symbols in actual vehicle.

Removal & Installation

WARNING:

  • Jacking up or lift up the vehicle may the vehicle height to go down which cause a personal injury and/or damage to the air suspension component parts. Refer to Precaution for when Jacking and Lifting Up the vehicle with Electronic Air Suspension System.

REMOVAL

Remove spare tire. Refer to Removal & Installation.

Remove rear muffler with the following procedure: Loosen the mounting nut of the mounting bracket .

CAUTION:

Be careful not to hit the rear muffler with the tool.

Remove mounting rubber 1 and rear muffler from the vehicle as a set.

: vehicle front

Remove mounting nut from the mounting bracket , and remove the mounting rubber 3 and rear muffler as a set from the mounting bracket.

If necessary, remove mounting rubber 1 and mounting rubber 3 from rear muffler .

Remove mounting bracket if necessary.

: vehicle front

Disconnect each connection and remove the main muffler.

INSTALLATION

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

  • Temporarily tighten bolts and nuts when installing exhaust pipe assembly. Tighten them to the specified torque when connecting the vehicle rear to the vehicle front.

CAUTION:

  • Always replace exhaust tube gaskets with new ones when reassembling.

  • If heat insulator is badly deformed, repair or replace it. If deposits such as mud pile up on the heat insulator, remove them.

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

  • Remove deposits from the sealing surface of each connection. Connect them securely to avoid gases leakage.

  • Check each part for unusual interference, and then tighten them to the specified torque.

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

EXHAUST SYSTEM : Inspection (Removal & Installation)

INSPECTION AFTER INSTALLATION

  • Check clearance between tail tube and 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.

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