LS 460 V8-4.6L (1UR-FSE) (2007)
Fuel Pressure Pulsation Damper: Service and Repair
REMOVAL
1. PRECAUTION
2. DISCHARGE FUEL SYSTEM PRESSURE
a. Discharge fuel system pressure.
3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt
pretensioner activation.
NOTE: 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.
5. DISCONNECT NO.1 FUEL PIPE SUB-ASSEMBLY
a. Lift up the retainer to release its lock.
b. Pinch the tube connector and then pull out the fuel pipe.
NOTE:
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Check for any dirt and foreign matter contamination in the pipe and around the connector. Clean if necessary. Foreign matter may damage
the O-rings or cause leaks in the seal between the pipe and connector.
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Do not use any tools to separate the pipe and connector.
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Do not forcefully bend or twist the nylon tube.
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Check for any dirt and foreign matter on the pipe seal surface. Clean if necessary.
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Put the pipe and connector ends in plastic bags to prevent damage and dirt contamination.
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If the pipe and connector are stuck together, pinch the tube between your fingers and turn it carefully to free it. Then disconnect the pipe.
6. REMOVE NO. 3 ENGINE COVER SUB-ASSEMBLY