Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000YXPP
Model Year Start: 2017 Model: Sienna Prod Date Range: [08/2016 -           ]
Title: 2GR-FKS EMISSION CONTROL: PCV VALVE: INSPECTION; 2017 - 2020 MY Sienna [08/2016 -        ]

INSPECTION

PROCEDURE

1. 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 cover sub-assembly LH side, and check that air passes through easily.

*a

Hose

*b

Air

Cylinder Head Cover Sub-assembly LH 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 air surge tank assembly side, and check that air passes through with difficulty.

*a

Hose

*b

Air

Intake Air Surge Tank 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).

(c) Remove the hose from the PCV valve (ventilation valve sub-assembly).