Nissan Altima 2007-2012 Service Manual: Symptom diagnosis

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

Use the chart below to help you find the cause of the symptom. The numbers indicate the order of the inspection.

If necessary, repair or replace these parts.

    Function diagnosis
    M/T SYSTEM System Diagram CROSS-SECTIONAL VIEW 1. Transaxle case 2. 3rd input gear 3. 3rd-4th synchronizer hub 4. 3rd-4th coupling sleeve 5. 4th input gear 6. 5th input gear 7. 5th-6th sync ...

    Precaution
    Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER ...

    Other materials:

    Hydraulic control system
    System Diagram System Description The hydraulic control mechanism consists of the oil pump directly driven by the engine, the hydraulic control valve that controls line pressure and transmission, and the input signal line. LINE PRESSURE AND SECONDARY PRESSURE CONTROL • When an input tor ...

    On-vehicle maintenance
    SQUEAK AND RATTLE TROUBLE DIAGNOSES Work Flow CUSTOMER INTERVIEW Interview the customer, if possible, to determine the conditions that exist when the noise occurs. Use the Diagnostic Worksheet during the interview to document the facts and conditions when the noise occurs and any custome ...

    Positive crankcase ventilation
    Description This system returns blow-by gas to the intake manifold. The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake manifold. During partial throttle operation of the engine, the intake manifold sucks the blow-by gas via the PCV ...