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                        | Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001PW7Y |  
                        | Model Year Start: 2021 | Model: Avalon | Prod Date Range: [08/2020 -                    
                                       ] |  
                        | Title: A25A-FKS (EMISSION CONTROL): PCV VALVE: INSPECTION; 2021 - 2022 MY Avalon [08/2020 -        ] |  INSPECTIONPROCEDURE1. INSPECT PCV VALVE (VENTILATION VALVE SUB-ASSEMBLY) (a) Install a hose to the PCV valve (ventilation valve sub-assembly). (b) Check PCV valve (ventilation valve sub-assembly) operation. (1) Blow air into the cylinder head sub-assembly side, and check that air passes through easily.   
                     
                        
                        
                     
                     
                        
                           | *a | Hose |  
                           | *b | Air |  
                           |   | Cylinder Head Sub-assembly Side |  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.   
                     
                        
                        
                     
                     
                        
                           | *a | Hose |  
                           | *b | Air |  
                           |   | Intake Manifold Side |  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). |