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
Preparation
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:
Seat belts with pretensioners (Front seats)
WARNING
● The pretensioners cannot be reused after
activation. They must be replaced
together with the retractor and buckle
as a unit.
● If the vehicle becomes involved in a
collision but a pretensioner is not activated,
be sure to have the pretensioner
system checked and, if nec ...
P2127, P2128 APP Sensor
Description
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelerator
position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometer which tran ...
Air conditioning cut control
System Diagram
System Description
INPUT/OUTPUT SIGNAL CHART
*1: This signal is sent to the ECM through CAN communication line.
*2: ECM determines the start signal status by the signals of engine speed and
battery voltage.
SYSTEM DESCRIPTION
This system improves engine operation when th ...
