Nissan Sentra Service Manual: Symptom diagnosis
Noise, vibration and harshness(NVH) troubleshooting
NVH Troubleshooting Chart
Use chart below to find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable
Preparation
Special Service Tool
The actual shape of the tools may differ from those illustrated here.
Commercial Service Tools
...
Other materials:
Trunk lid release switch
WARNING
Do not drive with the trunk lid open. This
could allow dangerous exhaust gases
to be drawn into the vehicle. See “Exhaust
gas” in the “Starting and driving”
section of this manual.
Closely supervise children when they
are around cars to prevent ...
Positive crankcase ventilation
Inspection
1.CHECK PCV VALVE
With engine running at idle, remove PCV valve from rocker cover. A
properly working valve makes a hissing noise as air passes through
it. A strong vacuum should be felt immediately when a finger is
placed over valve inlet.
Is the inspection result normal?
YES &g ...
Intake manifold tuning system
INTAKE MANIFOLD TUNING SYSTEM : System
Description
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
This system switches the length of intake air path according to the
low-to-medium speed range or high speed
range. Torque is increased in the low-to-medium speed range and the engine
output is improved ...
