GS400 Engine Clunking Noise @ Low RPM
06-30-12, 01:58 PM
Lexus Test Driver
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Join Date: Nov 2008
Location: TX
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GS400 Engine Clunking Noise @ Low RPM
After washing my car this afternoon, I noticed my engine is making a clunking noise a low RPM. (car in drive with the A/C off)
I believe it might be the harmonic balancer, although I'm not sure. I've taken a video so you guys can hear:
06-30-12, 02:03 PM
Lexus Test Driver
Join Date: Aug 2008
Location: CA
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Remove te belt and see if noise still there.
07-02-12, 08:24 PM
Lexus Test Driver
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I took off the belt today and determined that the tensioner pulley bearings are toast.
07-02-12, 11:15 PM
Lexus Test Driver
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Usually, it's recommended to change the tensioner during the timing belt replacement.
07-03-12, 05:13 AM
Lexus Champion
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valves ticks? maybe i have crazy crazyyyy valve tick.
07-03-12, 08:31 AM
Lexus Test Driver
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Quote:
Originally Posted by
GS4_Fiend
Usually, it's recommended to change the tensioner during the timing belt replacement.
There's a timing belt tensioner, and a serpentine belt tensioner. I'm guessing you're talking about both?
07-03-12, 09:12 AM
Lexus Test Driver
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Yes. I replace te serpentine belt and the belt tensioner at the same time during the t/b change for peace of mind
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06-30-12, 01:58 PM
GS400 Engine Clunking Noise @ Low RPM
