Mazda CX-5 Service & Repair Manual: Check Valve
Except U.S.A. And CANADA
Purpose, function
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The check valve maintain the pressure in the fuel tank at constant pressure.
Construction
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The check valve is installed to the side of the charcoal canister.
-
Mainly consists of valve, umbrella, and spring.
Operation
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The valve moves in response to the difference in air pressure between the fuel tank side and the atmospheric side, thereby changing the path of airflow.
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When the pressure in the fuel tank becomes negative due to fuel consumption or other factors, the path opens, drawing atmospheric air into the fuel tank.
Check Valve Removal/Installation
Except U.S.A. And CANADA
1. Remove the floor under cover..
2. Remove in the order indicated in the table.
1
Evaporative hose
2
Check valve
...
Emission System
Purpose, Outline
A single-nano catalyst has been adopted for the under-floor, three-way catalyst
to improve emission gas purification efficiency.
Structural View
Engine compartment si ...
Other materials:
Vacuum Pump [Skyactiv G 2.0]
Purpose, Function
Ensures vacuum required for braking force to compensate for the decrease
in intake manifold vacuum applied to the power brake unit caused by the retard
intake valve closing.
Construction
The vacuum pump is installed to the rear housing.
For s ...
Water Pump
Purpose, Function
The water pump operates by obtaining drive force from the engine via the
drive belt to pump engine coolant.
Construction
The water pump is installed to the engine front.
The water pump consists of the following parts:
A hard plasti ...
Rear Window Wiper and Washer
The ignition must be switched ON.
Rear WindowWiper
Turn the wiper on by turning the rear wiper/washer switch.
Rear WindowWasher
To spray washer fluid, turn the rear wiper/ washer switch to the
position. After the switch is released,
the washer will stop.
If the washer does not work, ins ...
