LS 460 V8-4.6L (1UR-FSE) (2007)
1. Replace the No.3 timing chain tensioner and both No.1 cylinder intake valve lash adjusters.
Refer to TIS, 2007 model year LS 460 Repair Manual,
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Engine/Hybrid System - Engine Mechanical - "1UR-FSE Engine Mechanical: Camshaft (for Bank 1): Removal"
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Engine/Hybrid System - Engine Mechanical - "1UR-FSE Engine Mechanical: Camshaft (for Bank 1): Installation"
2.
Reconnect the negative (-) battery terminal.
3.
Re-initialize any affected power systems.
Refer to TSIB No. PD007-07, "Power System Initialization During PDS".
4.
Test drive the vehicle to confirm that the knocking noise is NO longer present.