Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Pcv Valve

Components

COMPONENTS

ILLUSTRATION

*1	PCV VALVE (VENTILATION VALVE SUB-ASSEMBLY)	*2	V-BANK COVER SUB-ASSEMBLY
*3	VENTILATION HOSE	-	-
	N*m (kgf*cm, ft.*lbf): Specified torque	-	-

Removal

REMOVAL

PROCEDURE

1. REMOVE V-BANK COVER SUB-ASSEMBLY

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2. DISCONNECT VENTILATION HOSE

(a) Slide the clip and disconnect the ventilation hose from the PCV valve (ventilation valve sub-assembly).

3. REMOVE PCV VALVE (VENTILATION VALVE SUB-ASSEMBLY)

(a) Using a 22 mm deep socket wrench, remove the PCV valve (ventilation valve sub-assembly) from the cylinder head cover LH sub-assembly.

Inspection

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).

Installation

INSTALLATION

PROCEDURE

1. INSTALL PCV VALVE (VENTILATION VALVE SUB-ASSEMBLY)

(a) Apply a light coat of engine oil to the O-ring.

(b) Using a 22 mm deep socket wrench, install the PCV valve (ventilation valve sub-assembly) to the cylinder head cover sub-assembly LH.

Torque:

5.0 N·m {51 kgf·cm, 44 in·lbf}

NOTICE:

When reusing the PCV valve (ventilation valve sub-assembly), inspect the O-ring.

2. CONNECT VENTILATION HOSE

(a) Connect the ventilation hose to the PCV valve (ventilation valve sub-assembly) and slide the clip to secure it.

3. INSTALL V-BANK COVER SUB-ASSEMBLY

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