LS 460 V8-4.6L (1UR-FSE) (2007)
Timing Chain Tensioner: All Technical Service Bulletins
Engine Controls - Engine Knock at Idle
ENGINE
EG014-07
Title:
ENGINE IDLE KNOCK NOISE
Models:
'07 LS 460/460L
June 28, 2007
Introduction
Some 2007 model year LS 460 vehicles may exhibit a knocking noise originating from the engine compartment that is most noticeable under the
following conditions:
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Engine idling at operating temperature
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A/C OFF
^
A/T in "D" range
The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic, valve lash adjusters, and the No. 3 timing chain tensioner have
been modified to improve this condition. Please use the repair procedure below to address customer concerns.
Applicable Vehicles
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2007 model year LS 460/460L vehicles produced BEFORE the Production Change Effective VINs shown below.
Production Change Information
Warranty Information
Applicable Warranty:*
This repair is covered under the Lexus Federal Emissions Warranty. This warranty is in effect for 96 months or 80,000 miles, whichever occurs first,
from the vehicle's in-service date.
* Warranty application is limited to correction of a problem based upon a customer's specific complaint.