Nissan Sentra Owners Manual: Spark plugs
Replacing spark plugs
| WARNING Be sure the engine and ignition switch are off and that the parking brake is engaged securely. |
CAUTION
Be sure to use the correct socket to remove the spark plugs. An incorrect socket can damage the spark plugs.
Platinum-tipped spark plugs (except California models)
It is not necessary to replace platinum-tipped A spark plugs as frequently as conventional type spark plugs because they last much longer. Follow the maintenance log shown in the “NISSAN Service and Maintenance Guide”. Do not service platinum-tipped spark plugs by cleaning or regapping.
- Always replace spark plugs with recommended or equivalent ones.
If replacement is required, see your NISSAN dealer for assistance.
Iridium-tipped spark plugs (California models only)
It is not necessary to replace iridium-tipped A spark plugs as frequently as conventional type spark plugs because they last much longer. Follow the maintenance log shown in the “NISSAN Service and Maintenance Guide”. Do not service iridium-tipped spark plugs by cleaning or regapping.
- Always replace spark plugs with recommended or equivalent ones.
If replacement is required, see your NISSAN dealer for assistance.
Drive belt
Automatic tensioner
Generator
Water pump
Air conditioner compressor
Crankshaft pully
WARNINGBe sure the ignition switch is in the OFF
or
LOCK position before servicing dr ...
Air cleaner
The air cleaner filter should not be cleaned and
reused. Replace it according to the maintenance
log shown in the “NISSAN Service and Maintenance
Guide.”
To remove the air cleaner filter:
...
Other materials:
Power supply and ground circuit
Av control unit
Av control unit : diagnosis procedure
Regarding Wiring Diagram information, refer to AV-234, "Wiring Diagram".
1.Check fuse
Check that the following fuses are not blown.
Are the fuses blown?
Yes >> replace the blown fuse after repairing the affected circuit.
...
Idle speed
Inspection
1.CHECK IDLE SPEED
With CONSULT
Check idle speed in “DATA MONITOR” mode of “ENGINE” using CONSULT.
Specification : EC-486, "Idle Speed"
With GST
Check idle speed with Service $01 of GST.
Specification : EC-486, "Idle Speed"
>> INSPEC ...
Cooling fan control
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
ECM controls cooling fan speed corresponding to vehicle speed, engine coolant
temperature, refrigerant pressure,
air conditioner ON signal. Then control system has 3-step control
[HIGH/LOW/OFF].
Cooling Fan Operation
Cooling Fan Relay Operation
Whe ...
