Squeaking sound at cold start - 6MT.net Infiniti G35/G37/GTR Forums
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post #1 of 14 Old 05-20-2013, 08:05 PM Thread Starter
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Default Squeaking sound at cold start

This started happening recently, this only happens during cold starts.

Here is a video, anybody knows what it can be?
squeaking cold start - YouTube
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post #2 of 14 Old 05-20-2013, 08:39 PM
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So it is fine after it warms up?
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post #3 of 14 Old 05-20-2013, 09:03 PM Thread Starter
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So it is fine after it warms up?
yep, the noise will be gone when its warmed up
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post #4 of 14 Old 05-20-2013, 11:13 PM
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You tried popping the hood to try and see the approximate location for the noise?

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post #5 of 14 Old 05-21-2013, 01:27 AM
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I say don't worry about it, my 2008 does the same. Warmup is NOISY!
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post #6 of 14 Old 05-21-2013, 01:31 AM
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My test, Roll down the windows and drive it around. Now roll up the windows and drive it around. When do you hear the noise?

Can you hear this on the street when you start her?

Sounds like WindChimes and you have OCD!
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post #7 of 14 Old 05-21-2013, 02:44 AM
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Belt or pulley maybe ? Either could make a bit of noise until warmed up and not be considered a 'problem'.

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post #8 of 14 Old 05-21-2013, 04:01 AM
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You sure it's not a cricket? =) To me it sounds like a pulley bearing.


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post #9 of 14 Old 05-21-2013, 05:40 AM
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Does it get louder or faster with revs? That could narrow it down to a rotating mass for sure. Almost sounds like it could be the timing chain. They stretch over time. How many miles on the car?

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post #10 of 14 Old 05-21-2013, 08:36 AM
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I can't tell. Sounds like something is loose, like part of the exhaust.

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post #11 of 14 Old 05-21-2013, 09:50 AM Thread Starter
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Does it get louder or faster with revs? That could narrow it down to a rotating mass for sure. Almost sounds like it could be the timing chain. They stretch over time. How many miles on the car?

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80k miles on the car. I will see today if it gets louder with a rev when its warm.
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post #12 of 14 Old 05-21-2013, 01:03 PM
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Originally Posted by bachman View Post
Belt or pulley maybe ? Either could make a bit of noise until warmed up and not be considered a 'problem'.

Doesn't sound like a belt.

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post #13 of 14 Old 05-21-2013, 03:11 PM Thread Starter
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Originally Posted by GZire View Post
Doesn't sound like a belt.
Well the sounds didn't happen today, weird. Maybe it fixed lol
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post #14 of 14 Old 05-21-2013, 04:11 PM
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Originally Posted by GZire View Post
Doesn't sound like a belt.
Agreed ^^
Belts are a more constant squeal. It could be an exhaust issue however i've never heard any exhaust make that sound BUT it does make sense to give it a look. Once the metal heats it could be expanding and possibly "resolves" the issue till it cools again.

That really sounds like a loose nut or bolt somewhere that just rattles. Check the exhaust manifold, cats, and any spot that the exhaust connects for a loose bolt.
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