Help with identifying 3ZZ-FE rattle at idle

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Old 20 Mar 2012, 01:35 pm   #1 (permalink)
Dan
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Default Help with identifying 3ZZ-FE rattle at idle

Corolla 2006 with 3ZZ-FE engine got a rattle at idle:

http://www.youtube.com/watch?v=KYVV8...L&noredirect=1

Noise is there only with engine warm.
Car has 45,000 miles.
At the dealer they suggested it may be a worn chain liner.
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Old 21 Mar 2012, 11:13 pm   #2 (permalink)
uncle_vito
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Default Re: Help with identifying 3ZZ-FE rattle at idle

Noise does not seem to increase in intensity or freqency with RPM. I would
remove all belts and run engine for a very short time (no cooling) and see
if the noisc is still there, I think it is a pully (bearing) making the
noise. Not a real issue and will get progressively worse before failing.
You will have plenty of warning before it fails.


"Dan" <drnwnr@hotmail.com> wrote in message
news:253674d3-edbc-4346-a277-52b82e22040c@j14g2000vbc.googlegroups.com...
> Corolla 2006 with 3ZZ-FE engine got a rattle at idle:
>
> http://www.youtube.com/watch?v=KYVV8...L&noredirect=1
>
> Noise is there only with engine warm.
> Car has 45,000 miles.
> At the dealer they suggested it may be a worn chain liner.



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Old 22 Mar 2012, 04:15 am   #3 (permalink)
uncle_vito
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Default Re: Help with identifying 3ZZ-FE rattle at idle

Also check your PCV valve. Perhaps a spring broke or is weak and allowing
the metal valve inside to rattle. Just disconnect it to test idea.


"uncle_vito" <uncle_vito2002@yahoo.com> wrote in message
news:4f6aa6cc$0$2892$a8266bb1@newsreader.readnews. com...
> Noise does not seem to increase in intensity or freqency with RPM. I
> would remove all belts and run engine for a very short time (no cooling)
> and see if the noisc is still there, I think it is a pully (bearing)
> making the noise. Not a real issue and will get progressively worse
> before failing. You will have plenty of warning before it fails.
>
>
> "Dan" <drnwnr@hotmail.com> wrote in message
> news:253674d3-edbc-4346-a277-52b82e22040c@j14g2000vbc.googlegroups.com...
>> Corolla 2006 with 3ZZ-FE engine got a rattle at idle:
>>
>> http://www.youtube.com/watch?v=KYVV8...L&noredirect=1
>>
>> Noise is there only with engine warm.
>> Car has 45,000 miles.
>> At the dealer they suggested it may be a worn chain liner.

>
>



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