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2006 Lexus LS 430 - I started hearing a rattling noise around the pulleys. What can this be? my gauges are fine . Temp on motor is fine. Coolant is fine.
The LS430 has 2 sets of pulleys - one set driven by the timing belt, and the other by the serpentine belt.
I would suggest to start your troubleshooting with the easier one - the serpentine belt. Remove the belt (see sketches below) and rotate each of the pulleys by hand.
2006 Lexus LS 430 - I started hearing a rattling noise around the pulleys. What can this be? my gauges are fine . Temp on motor is fine. Coolant is fine.
I'm prepping to do the timing belt on my 2005 soon, and the idler pulley for the serpentine belt squeaks a little when the engine is cold. After a few minutes it does quiet down, but it will definitely be replaced when I do the timing belt, along with the serpentine belt.
02-23-18, 01:42 AM
rattling Noise
