Nissan Altima 2007-2012 Service Manual: Function diagnosis

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting - Engine Noise

1. Camshaft bearing noise


1. Camshaft bearing noise

2. Piston pin noise

3. Piston slap noise

4. Main bearing noise

5. Connecting rod bearing noise

6. Drive belt noise (Sticking/Slipping)

7. Drive belt noise (Slipping)

8. Water pump noise

9. Timing chain and chain tensioner noise

10. Tappet noise

A. Valve

B. Valve mechanism

C. Rotation mechanism

D. Drive belt

E. Timing chain

Use the Chart Below to Help You Find the Cause of the Symptom

1. Locate the area where noise occurs.

2. Confirm the type of noise.

3. Specify the operating condition of engine.

4. Check specified noise source. Repair or replace the identified part as necessary.

A: Closely related


A: Closely related

B: Related

C: Sometimes related —: Not related

    Preparation
    Special Service Tool The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here. Commercial Service Tool ...

    Other materials:

    M&A branch line circuit
    Diagnosis Procedure INSPECTION PROCEDURE 1.CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Check the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). ...

    B260B steering lock unit
    Description The electronic steering column lock performs the check by itself according to the steering status. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PERFORM DTC CONFIRMATION PROCEDURE 1. Press the push-button ignition switch, when steering is locked. 2. Check †...

    Satellite radio reception (if so equipped)
    When the satellite radio is used for the first time or the battery has been replaced, the satellite radio may not work properly. This is not a malfunction. Wait more than 10 minutes with satellite radio ON and the vehicle outside of any metal or large building for satellite radio to receive a ...