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: Additional maintenance items for
severe operating conditions
Additional maintenance items for severe
operating conditions should be performed
on vehicles that are driven under
especially demanding conditions. Additional
maintenance items should be performed
if you primarily operate your vehicle
under the following conditions:
Repeated short trips of less th ...
I-LI system limitations
WARNING
Listed below are the system limitations
for the I-LI system. Failure to follow the
warnings and instructions for proper
use of the I-LI system could result in
serious injury or death.
The I-LI system may activate if you
change lanes without first activating
your turn signal or, for examp ...
Heater operation
Heating
This mode is used to direct heated air to
the foot outlets. Some air also flows from
the defrost outlets and the side vent
outlets.
1. Press thebutton to the off
position
for normal heating.
2. Press theair flow control
button.
3. Turn thefan speed control dial
to
the desired position.
...
Preparation
On-vehicle maintenance