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1.
caution |
The check valve should not be removed from the vacuum hose.
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Remove the vacuum hose (Refer to ).
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2.
caution |
If the check valve is defective, replace it as an assembly unit together with the vacuum hose.
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Check the operation of the check valve by using a vacuum pump.
Vacuum pump connection
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Accept/reject criteria
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Connection at the brake booster side (A)
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A negative pressure (vacuum) is created and held.
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Connection at the intake manifold side (B)
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A negative pressure (vacuum) is not created.
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