Nissan Armada 2025-2026 Service and Repair Manual: Symptom Table

Nissan Armada 2025-2026 Service and Repair Manual / Ventilation, Heater & Air Conditioner / Heater & Air Conditioning System — Symptom Diagnosis / Noise / Symptom Table

Symptom	Noise source	Probable cause	Corrective action
Unusual noise from A/C compressor when A/C is ON.	Inside of A/C compressor	Wear, breakage, or clogging of foreign material in inner parts.	Check A/C compressor oil. Refer to Inspection.
	Magnet clutch	Contact of clutch disc with pulley.	Replace A/C compressor. Refer to Removal and Installation.
	A/C Compressor body	Loosened A/C compressor mounting bolts.	Check bolts for tightness. Refer to Exploded View.
Unusual noise from cooler piping.	Cooler piping (pipe and flexible hose)	Improper installation of clip and bracket.	Check the installation condition of the cooler piping. Refer to Exploded View.
Unusual noise from expansion valve when A/C is ON.	Expansion valve	Shortage of refrigerant.	Check for leakage. Collect all refrigerant, evacuate refrigerant cycle again, and then refill it with the specified amount of refrigerant.
Unusual noise from expansion valve when A/C is ON.	Expansion valve	Wear, breakage, or clogging of foreign material in inner parts.	Eliminate foreign material from expansion valve, or replace it. Front: Removal and Installation Rear: Removal and Installation
Unusual noise from belt.	—	Loosened belt.	Check belt tension. Refer to Inspection.
Unusual noise from belt.	—	Internal A/C compressor parts get locked.	Replace A/C compressor. Refer to Removal and Installation.

Noise

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Heater & Air Conditioning System — Removal and Installation

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Other materials:

Removal and Installation
REMOVAL Remove luggage side lower finisher RH. Refer to Removal and Installation. Disconnect rear mode door motor harness connector . : Vehicle front Remove fixing screws , and then remove rear mode door motor. INSTALLATION Install in the reverse order of removal. ...

Work Flow
DETAILED FLOW INTERVIEW FROM THE CUSTOMER CAUTION: >> GO TO 2. CHECK SYMPTOM CAUTION: >> GO TO 3. PERFORM SELF-DIAGNOSIS With CONSULT Perform self-diagnosis for “AWD/4WD”. Is any DTC detected? YES>> Record or print self-diagnosis results. GO TO 4. NO>> GO TO 6. RE ...

Cockpit
Example The cockpit of the Nissan Armada is thoughtfully designed to provide intuitive control, comfort, and accessibility for the driver. Every switch, button, and control element is positioned to enhance driving convenience and ensure that essential functions are always within easy reac ...

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