Nissan Juke Service and Repair Manual : Structure and operation
Positive Crankcase Ventilation
This system returns blow-by gas to the intake manifold.
The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake manifold.
During partial throttle operation of the engine, the intake manifold sucks the blow-by gas through the PCV valve.
Normally, the capacity of the valve is sufficient to handle any blow-by and a small amount of ventilating air.
The ventilating air is then drawn from the air inlet tubes into the crankcase. In this process the air passes through the hose connecting air inlet tubes to rocker cover.
Under full-throttle condition, the manifold vacuum is insufficient to draw the blow-by flow through the valve.
The flow goes through the hose connection in the reverse direction.
On vehicles with an excessively high blow-by, the valve does not meet the requirement. This is because some of the flow will go through the hose connection to the air inlet tubes under all conditions.
Component parts
Engine control system : Component Parts Location
1. IPDM E/R
Refer to PCS-5, "Component Parts
Location".
2. Battery current sensor
(with battery temperature sensor)
3. Mass air flow ...
System
Engine control system : System Diagram
Engine control system : System Description
ECM performs various controls such as fuel injection control and ignition
timing control.
MULTIPORT FUEL INJE ...
Other materials:
Rear wiper arm
Exploded View
1. Rear wiper motor
2. Rear wiper blade
3. Rear wiper arm
4. Rear wiper arm cover
5. Rear wiper pivot seal
A : Model for cold areas
: Pawl
: N·m (kg-m, in-lb)
: N·m (kg-m, ft-lb)
Removal and Installation
REMOVAL
1. Operate rear wiper to the auto stop position.
2. Re ...
Warning lights
All-Wheel Drive (AWD) warning light
(AWD model)
When the ignition switch is in the “ON” position, the All-Wheel Drive (AWD) warning
light will illuminate. It will turn off soon after the engine is started.
If the AWD system malfunctions or the revolution or radius of the front and the
r ...
Car phone or CB radio
When installing a two-way CB, ham radio, or a dedicated car phone system in your Nissan Leaf, be sure to strictly observe the following technical precautions; otherwise, the newly integrated radio frequency equipment may adversely affect the sophisticated EV control system networks and other sensiti ...
