Took the ls in today for a weird clanking noise coming from the front of the engine bay. They say their is a tsb on updated idler pulley? Hopefully this will resolve the issue.

 

can u get the TSB #? i have the clunking noise also

 

Im picking the car up later today, Ill post more info later.

 

Some 2007 model year LS 460 or LS 460L vehicles may exhibit a rattle or squeak noise from the engine compartment while idling. This may be caused by one or both of the engine idler pulleys. The engine idler pulleys have been updated to correct this condition. Please use the following repair procedure to address customer concerns.

2007 model year LS 460/460L vehicles produced BEFORE the Production Change Effective VINs shown below.

MODEL PRODUCTION CHANGE EFFECTIVE VIN
LS 460 JTHBL46F#75013458
LS 460L JTHGL46F#75004379