Nissan Altima (L32) 2007-2012 Service Manual: Function diagnosis
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING
NVH Troubleshooting - Engine Noise
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.
If necessary, repair or replace these parts.
Special Service Tool
The actual shapes of the Kent-Moore tools may differ from those of the
special service tools illustrated here.
Commercial Service Tool
...
Other materials: Spark plugs
Replacing spark plugs
Iridium-tipped spark plugs
It is not necessary to replace iridium-tipped A
spark plugs as frequently as conventional
type spark plugs because they
last much longer. Follow the maintenance
log shown in the "Maintenance and schedules"
section of this manual. Do not service
iridi ...
Cleaning exterior
In order to maintain the appearance of
your vehicle, it is important to take proper
care of it.
To protect the paint surfaces, wash your
vehicle as soon as you can:
After a rainfall to prevent possible damage
from acid rain.
After driving on coastal roads.
When contaminants such as soot, bird
...
Oil control system (if so equipped)
The oil control system can be accessed in
the Maintenance portion of the vehicle information
display settings.
Engine oil information informs the distance
to oil change. Never exceed one year or
7,500 miles (12000 km) between oil change
intervals for the 2.0L 4 cylinder (KR20DDET
engine model) or 1 ...