TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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EGTE/Emission System 2JZ-GTE4 / 13
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POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM PCV VALVE INSPECTION — MK4 Supra Emission System 2JZ-GTE, page 4
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ENGINE – EMISSION CONTROL SYSTEMS (2JZ–GTE) EG–177 PCV Valve P11798 POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM PCV VALVE INSPECTION 1. REMOVE PCV VALVE (a) Disconnect the PCV hose from the PCV valve. (b) Remove the PCV valve. Cylinder Head Side Clean Hose P11834 2. INSTALL CLEAN HOSE TO PCV VALVE 3. INSPECT PCV VALVE OPERATION (a) Blow air into the cylinder head side, and check that air passes through easily. CAUTION: Do not suck air through the valve. Petroleum sub- stances inside the valve are harmful. Air Intake Chamber Side P11831 (b) Blow air into the air intake chamber side, and check that air passes through with difficulty. If operation is not as specified, replace the PCV valve. 4. REMOVE CLEAN HOSE FROM PCV VALVE 5. REINSTALL PCV VALVE P11845 PCV HOSES AND CONNECTORS INSPECTION VISUALLY INSPECT HOSES, CONNECTIONS AND GAS- KETS Check for cracks, leaks or damage.