Mazda 3 Quiz
Engine

Check Valve (One Way) Inspection [Mzr 2.3 Disi Turbo]

In this manual: Engine
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~1min read

1. Disconnect the vacuum hose connected between the check valve and the purge solenoid valve from the purge solenoid valve..

2. Disconnect the vacuum hose connected between the check valve (one-way) and the intake manifold from the intake manifold..

3. Blow through the check valve (one-way) and verify that air flows as specified.


Specification

Condition

Airflow

Air applied from port A to B

Yes

Air applied from port B to A

No*

* The check valve (one-way) is normal if the aeration to port A is 3.5 kPa/min {0.03 kgf/cm2 min, 0.5 psi/min} or less when 130 kPa {1.32 kgf/cm2, 18.9 psi}

is applied to port B.

  • If not as specified, replace the check valve (one-way)..

Test yourself

A quick Mazda 3 quiz: every answer comes with an explanation and a link to the manual page.