INSPECTION PROCEDURE 1. INSPECT PCV VALVE (VENTILATION VALVE SUB-ASSEMBLY) (a) Install a hose to the PCV valve (ventilation valve sub-assembly). (b) Check the PCV valve (ventilation valve sub-assembly) operation. (1) Blow air into the cylinder head sub-assembly side, and check that air passes through easily. 
CAUTION: Do not suck air through the valve. Petroleum substances inside the valve are hazardous to your health. If the result is not as specified, replace the PCV valve (ventilation valve sub-assembly). (2) Blow air into the intake manifold side, and check that air passes through with difficulty. 
CAUTION: Do not suck air through the valve. Petroleum substances inside the valve are hazardous to your health. If the result is not as specified, replace the PCV valve (ventilation valve sub-assembly). (c) Remove the hose from the PCV valve (ventilation valve sub-assembly). |
Toyota Avalon Service & Repair Manual > A25a-fxs (emission Control): Fuel Tank Cap
InspectionINSPECTION PROCEDURE 1. INSPECT FUEL TANK CAP ASSEMBLY (a) Visually check that the fuel tank cap assembly and gasket are not deformed or damaged. If the result is not as specified, replace the fuel tank cap assembly. *a Gasket (b) Confirm that ID mark Z is printed on the fuel tank cap ass ...
