Golf III L4-2.0L (ABA) (1995)
in only one direction. This one-way operation prevents raw fuel from flowing out of the fuel tank into the charcoal canister in the event of a vehicle
rollover.
TESTING
Rollover/Gravity Valve (typical)
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Remove the valve from the fuel filler neck by uncliping it and pulling it up out of the filler neck.
Rollover/Gravity Valve (typical)
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Hold the valve "LEVEL" and blow air through the inlet.
^
Air SHOULD pass freely.
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"Tilt" the valve 45° or more and blow air through the inlet.
^
Air SHOULD NOT pass.
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If the valve fails either test replace it.