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Nissan Armada 2025-2026 Service and Repair Manual: Noise, Vibration and Harshness (nvh) Troubleshooting

NVH Troubleshooting Chart

Use the chart below to find the cause of the symptom. The numbers indicate the order of the inspection. If necessary, repair or replace these parts.

SUSPECTED PARTS

(Possible cause)
Symptom Reference
Transfer fluid leakage Noise
TRANSFER FLUID (Level low)   1 Inspection
TRANSFER FLUID (Wrong) 4 2
TRANSFER FLUID (Level too high) 1  
LIQUID GASKET (Damaged) 2   Exploded View
OIL SEAL (Worn or damaged) 2  

Front oil seal: Exploded View

Rear oil seal: Exploded View

Input oil seal: Exploded View
GEAR (Worn or damaged)   3 —
BEARING (Worn or damaged)   3 —
TRANSFER CASE (Damaged) 3 3 —

NOTE:

When transfer inner parts are malfunction, replace transfer assembly.

    Other materials

    General Information Tools and Preparation
    Special Service Tools Tool number Tool name Description KV99112600 Crimping Pliers Crimping terminals Commercial Service Tools Tool name Description Industrial dryer Heating heat shrinkable tube Repair Parts Part name Description Harness repair kit A: Heat shrinkable tube ...

    Back Door Window Glass
    Exploded View Back door outer panel Back door window glass Spacer A Clip upper RH Clip lower Spacer B Spacer C Back door window glass molding Dam sealant rubber Clip upper LH Glass primer Adhesive Adhesive mark : Always replace after every disassembly. ...

    Normal Operating Condition
    Description Symptom Possible cause Unstable object detection The vehicle is on a rough surface, such as stone or gravel. When used in poor weather conditions, such as heavy snow/rain or strong wind. When subjected to an ultrasonic noise generated from exhaust muffler or brakes. When le ...