Home Engine/Hybrid System Emission Control 3UR-FE EMISSION CONTROL: AIR SWITCHING VALVE
Last Modified: 11-27-2007 1.6 A
Service Category: Engine/Hybrid System Section: Emission Control
Model Year: 2008 Model: LX570 Doc ID: RM0000030WH006X
Title: 3UR-FE EMISSION CONTROL: AIR SWITCHING VALVE: REMOVAL (2008 LX570)

REMOVAL

1. REMOVE EXHAUST MANIFOLD SUB-ASSEMBLY

(a) Remove the exhaust manifold 3UR-FE INTAKE / EXHAUST: EXHAUST MANIFOLD: REMOVAL (2008 LX570) .

2. REMOVE INTAKE MANIFOLD

(a) Remove the intake manifold 3UR-FE INTAKE / EXHAUST: INTAKE MANIFOLD: REMOVAL (2008 LX570) .

3. DISCONNECT NO. 1 WATER BY-PASS HOSE


(a) Disconnect the No. 1 water by-pass hose from the water by-pass joint and water inlet housing.

4. DISCONNECT NO. 2 WATER BY-PASS HOSE

(a) Disconnect the No. 2 water by-pass hose from the water by-pass joint.

5. DISCONNECT NO. 2 WATER BY-PASS PIPE SUB-ASSEMBLY (w/ Oil Cooler)


(a) Remove the 3 bolts and disconnect the No. 2 water by-pass pipe.

6. REMOVE NO. 2 ENGINE COVER



7. DISCONNECT FUEL TUBE CLAMP


(a) Disconnect the fuel tube clamp from the bracket.

8. REMOVE NO. 1 ENGINE COVER



9. REMOVE FRONT WATER BY-PASS JOINT

(a) Disconnect the engine coolant temperature sensor connector.


(b) Remove the 4 nuts, front water by-pass joint and 2 gaskets.

10. REMOVE AIR PIPE SUB-ASSEMBLY


(a) Disconnect the No. 2 and No. 3 hoses.

(b) Disconnect the air pump connector.

(c) Disconnect the air pump connector clamp holder.

(d) Using a clip remover, detach the wire harness claw.


(e) Remove the 2 bolts and air pipe.

(f) Disconnect the 2 No. 1 air hoses from the air pipe.

11. REMOVE AIR SWITCHING VALVE ASSEMBLY


(a) Disconnect the knock sensor connector.

(b) Remove the bolt and bracket.

(c) Disconnect the 2 air switching valve connectors.


(d) Remove the 3 bolts and air switching valve.

12. REMOVE NO. 2 AIR TUBE


(a) Remove the 2 bolts, No. 2 air tube and gasket.

NOTICE:

Be careful not to damage the installation surface of the gaskets.

13. REMOVE NO. 3 AIR TUBE


(a) Remove the 2 bolts, No. 3 air tube and gasket.

NOTICE:

Be careful not to damage the installation surface of the gaskets.