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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

    Diagnosis and Repair Work Flow
    Work Flow OVERALL SEQUENCEDETAILED FLOWINTERVIEW FOR MALFUNCTION It is also important to clarify the customer concerns before starting the inspection. Interview the customer about the concerns carefully and understand the symptoms fully. NOTE: The customers are not professionals. Never assume that â ...

    Ipdm E/r
    Exploded View IPDM E/R cover A IPDM E/R IPDM E/R cover B IPDM E/R cover C IPDM E/R cover D IPDM E/R cover E IPDM E/R cover bracket         : Pawl         Removal and Installation REMOVALDisconnect the battery cable from the negativ ...

    Battery
    Exploded View Without ProPILOT ASSIST 2.1 Battery fix frame Battery cover Negative cable Battery current sensor 12V battery Battery fix rod Battery fix rod clip Battery tray Battery positive terminal Battery positive terminal cover Battery terminal with fusible link ...