Nissan Altima (L32) 2007-2012 Service Manual: Function diagnosis
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING
NVH Troubleshooting - Engine 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
B: Related
C: Sometimes related —: Not related
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: Corrosion protection
Most common factors contributing to
vehicle corrosion
Most vehicle corrosion is caused by:
The accumulation of moisture-retaining
dirt and debris in body panel sections,
cavities, and other areas.
Damage to paint and other protective
coatings caused by gravel and stone
chips or minor traffic ...
Changing wheels and tires
Tire rotation
ISSAN recommends rotating the
tires every 5,000 miles (8,000 km) for
vehicles equipped with the 2.5L 4 cylinder
(PR25DD engine model) and
7,500 miles (12,000 km) for vehicles
equipped with the 2.0L 4 cylinder
(KR20DDET engine model).
For additional information on tire replacing
proce ...
Push-button ignition switch
WARNING
Do not operate the push-button ignition
switch while driving the vehicle except
in an emergency. (The engine will
stop when the ignition switch is
pushed
three consecutive times in quick succession
or the ignition switch is pushed
and held for more than 2 seconds.) If
the engine stops while ...
Preparation
On-vehicle maintenance