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: System operation
The system informs with a visual and audible
alert of rear obstacles when the shift
lever is in the R (Reverse) position.
The system is deactivated at speeds above
6 mph (10 km/h). It is reactivated at lower
speeds.
The intermittent tone will stop after 3 seconds
when an obstacle is detected by on ...
Changing engine oil and oil filter
For additional information on engine oil
and oil filter change, refer to the instructions
outlined in this section.
Vehicle set-up
1. Park the vehicle on a level surface and
apply the parking brake.
2. Run the engine until it reaches operating
temperature.
3. Turn the engine off and wait for 15 mi ...
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 ...
Preparation
On-vehicle maintenance