Fig. 6.10. Check valve testing diagram
Apply vacuum and pressure alternately to the engine side vacuum hose and make sure that air can only flow in one direction (Fig. 6.10).
If air flows in both directions, replace the vacuum hose.
Checking the vacuum hose check valve (brake booster) (Mazda 3 BK)
Remove the clamps and vacuum hose.
Fig. 6.10. Check valve testing diagram
Apply vacuum and pressure alternately to the engine side vacuum hose and make sure that air can only flow in one direction (Fig. 6.10).
If air flows in both directions, replace the vacuum hose.
Fig. 6.10. Check valve testing diagram
Apply vacuum and pressure alternately to the engine side vacuum hose and make sure that air can only flow in one direction (Fig. 6.10).
If air flows in both directions, replace the vacuum hose.
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This text was checked by: Evdokia Filimonova
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