LX 450 L6-4.5L (1FZ-FE) (1996)
Thermal Vacuum Valve - EVAP: Testing and Inspection
THERMAL VACUUM VALVE (TVV) FOR EVAP INSPECTION
1. Drain engine coolant.
2. Remove TVV from cylinder head.
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Disconnect the 2 vacuum hoses from the TVV.
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Remove the TVV.
3. Inspect TVV operation.
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Cool the TVV to below 45°C (113°F) with cool water.
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Check that air flows from port J to the air filter.
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Heat the TVV to above 64°C (147°F) with hot water.
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Check that air flows from port J to K.
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If operation is not as specified, replace the TVV.
4. Reinstall TVV.
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Apply adhesive to 2 or 3 threads of the TVV.
Adhesive: