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:
Front Combination Light Removal/Installation
WARNING:
Incorrect servicing of the discharge headlights could result in electrical
shock. Before servicing the discharge headlights, always refer to the service
warnings..
NOTE:
Fogging or condensation on the inside of the front combination lights may
occur due to a n ...
Throttle Body Inspection
Resistance Inspection
1. Disconnect the negative battery cable..
2. Disconnect the throttle body connector.
3. Measure the resistance between throttle body terminals E and F.
Throttle body resistance
1.38 ohms [20°C {68 °F}]
If not as specified, replace the throttle ...
Air Intake Actuator Inspection [Full Auto Air Conditioner]
1. Connect battery positive voltage to air intake actuator terminal B (or C),
connect terminal C (or B) to ground, and then verify that the air intake actuator
operates as shown in the table.
If the operation condition is not normal, replace the air intake actuator.
...
