Mazda CX-5 Service & Repair Manual: Positive Crankcase Ventilation (PCV) Valve
Purpose, Function
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Prevents release of blow-by gas (unburnt gas) into the atmosphere.
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The PCV valve is open/closed by the intake manifold vacuum.
Construction
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The PCV valve is installed to the oil separator.
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The PCV valve consists of a spring and valve.
Operation
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When the valve is pulled by the intake manifold vacuum, blow-by gas flows to the intake manifold.
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Blow-by gas flow amount is adjusted by the spring according to the intake manifold vacuum.
Positive Crankcase Ventilation (PCV) Valve Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the intake manifold..
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.
1
...
Purge Solenoid Valve Inspection
Airflow Inspection
1. Disconnect the negative battery cable..
2. Remove the purge solenoid valve..
3. Inspect airflow between the ports under the following conditions.
...
Other materials:
Rear Differential Disassembly
WARNING:
The engine stand is equipped with a self-lock mechanism, however, if the
rear differential is in a tilted condition, the self-lock mechanism could become
inoperative. If the rear differential unexpectedly rotates it could cause injury,
therefore do not maintain the rear dif ...
Windshield Wiper Motor
Purpose
The windshield wiper motor transmits rotation force to the windshield wiper
link to operate the windshield wiper arms and blades.
Function
The windshield wiper motor operates using the current from the front body
control module (FBCM) which is input according to the ...
Power Window System Preliminary Inspection [Power Window System]
Manual Open/Close Function Inspection
STEP
INSPECTION
ACTION
1
Switch the ignition ON (engine off or on).
Operate the power window using the manual open/close function on
the power window main swit ...
