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: Brake system
The brake system has two separate hydraulic
circuits. If one circuit malfunctions,
you will still have braking at two wheels.
Brake precautions
Vacuum assisted brakes
The brake booster aids braking by using
engine vacuum. If the engine stops, you
can stop the vehicle by depressing the
brake pedal. H ...
Heated seat switches (if so equipped)
WARNING
Do not use or allow occupants to use
the seat heater if you or the occupants
cannot monitor elevated seat temperatures
or have an inability to feel
pain in body parts that contact the
seat. Use of the seat heater by such
people could result in serious injury.
CAUTION
The battery could run ...
Rear Door Alert
The Rear Door Alert system functions under
certain conditions to indicate there
may be an object or passenger in the rear
seat(s). Check the seat(s) before exiting the
vehicle.
The Rear Door Alert system is initially disabled.
The driver can enable the system
using the vehicle information display. ...
Preparation
On-vehicle maintenance