A knocking May be Noted From the Engine Under Certain Conditions on Lexus LS460

A knocking sound may be heard at idle, when the air conditioning is off and the automatic transmission is in "Drive". Several changes have been made to improve this; a computer software upgrade, revised valve lash adjusters, and a redesigned timing chain are all available to try and correct this concern.

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Average mileage: 60,000 (53,000–67,000)
Drive Train affected: RWD
2 model years affected: 2007, 2010
4 people reported this problem
2 people shared problem details
2007 Lexus LS460- RWD67,000
The same situation happened to my 2007 LS460L as well.
2010 Lexus LS460- RWD60,000
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