LS 460 RWD V8-4.6L (1UR-FSE) (2010)
Fuel Pressure Relief Valve: Service and Repair
Removal
1UR-FSE FUEL: FUEL RELIEF VALVE: REMOVAL
1. PRECAUTION See: Fuel Injector/Service and Repair/Fuel Injector (For Port Injection)/Removal
2. DISCHARGE FUEL SYSTEM PRESSURE
(a) Discharge fuel system pressure See: Service Precautions.
3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory
and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative
(-) battery terminal.
4. REMOVE INTAKE MANIFOLD
(a) Remove the intake manifold See: Engine, Cooling and Exhaust/Engine/Intake Manifold/Service and Repair/Removal.
5. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY
(a) Remove the engine cover from the engine.
6. REMOVE FUEL RELIEF VALVE ASSEMBLY
(a) Remove the No. 1 fuel pipe.
(b) Disconnect the No. 3 fuel hose from the relief valve.
(c) Using a 14 mm deep socket wrench, remove the relief valve and gasket from the No. 2 delivery pipe.