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: Driving safety precautions
Your NISSAN is designed for both normal
and off-road use. However, avoid driving in
deep water or mud as your NISSAN is
mainly designed for leisure use, unlike a
conventional off-road vehicle.
Remember that 2-Wheel Drive (2WD) models
are less capable than All-Wheel Drive
(AWD) models for rough road ...
Programming trouble-diagnosis
If the HomeLink does not quickly learn the
hand-held transmitter information:
Replace the hand-held transmitter batteries
with new batteries.
Position the hand-held transmitter with
its battery area facing away from the
HomeLink surface.
Press and hold both the HomeLink and
hand-held transmi ...
Active noise cancellation/Active sound
enhancement (if so equipped)
Active noise cancellation
Front Microphone
This system uses microphones 1 located
inside the vehicle to detect engine booming
noise. The system then automatically generates
a noise cancelling sound through the
speakers and woofer (if so equipped) to reduce
engine booming noise.
NOTE:
To operate the ...