Landcruiser 4WD L6-4.5L (1FZ-FE) (1993)
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Check Valve for PAIR: Testing and Inspection
INSPECTION
1. Remove throttle body.
2. Remove check valve.
3. Inspect check valve.
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Check that air flows from the orange pipe to the black pipe.
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Check that air does not flow from the black pipe to the orange pipe.
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If operation is not as specified, replace the check valve.
4. Reinstall check valve.
HINT: Reinstall the check valve with the black pipe facing the front of the vehicle.
5. Reinstall throttle body.
