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.
Engine control system
Engine control system : Component Parts Location
ENGINE ROOM COMPARTMENT
1. Boost control actuator
2. Turbocharger boost control solenoid
valve
3. A/F sensor 1
4. Recirculation valve
5. EV ...
System
...
Other materials:
Lubricant
Description
MAINTENANCE OF LUBRICANT LEVEL
The compressor lubricant is circulating in the system together with the
refrigerant. It is necessary to fill compressor
with lubricant when replacing A/C system parts or when a large amount of
refrigerant leakage is
detected. It is important to alwa ...
Thermo control amplifier
Component Function Check
1.CHECK A/C ON SIGNAL
With CONSULT-III
1. Turn ignition switch ON.
2. Select “AIR CONDITIONER” of “BCM” using CONSULT-III.
3. Select “THERMO AMP” in “DATA MONITOR” mode, and check status under the
following condition.
Is the inspection result normal?
YES >> ...
Wiring diagram
DOOR & LOCK SYSTEM
Wiring Diagram
For connector terminal arrangements, harness layouts, and alphabets in a
(option abbreviation; if not
described in wiring diagram), refer to GI-12, "Connector Information/Explanation
of Option Abbreviation".
...
