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Nissan Armada 2025-2026 Service and Repair Manual: Positive Crankcase Ventilation

Inspection

Start engine and let it idle.

Replace PCV valve from the rocker cover. Refer to Removal and Installation.

Connect PCV valve to PCV hose.

Block and unblock the air hole of PCV valve and check if a hissing noise can be heard from the air hole.

Is the inspection result normal?

YES >> INSPECTION END

NO >> Replace PCV valve. Refer to Removal and Installation.

    Other materials

    Spark plugs
    Basic information WARNING Ensure the engine is off, the ignition is switched off, and the parking brake is securely engaged before servicing spark plugs in your Nissan Armada. CAUTION Always use the correct socket when removing spark plugs from your Nissan Armada to avoid damaging the compon ...

    Mac Key Writing
    Description When replacing ECM, it is necessary to write MAC key to ECM. Write MAC key to ECM according to "MAC Key writing" procedure of "CONSULT Operation Manual". Refer to Work Procedure.CAUTION: During MAC key writing, maintain the following conditions: Ignition switch ON CONSULT is connecte ...

    Wheel Alignment
    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. DESCRIPTIONMeasure w ...