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What is this sound and where is it coming from?

  

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I’ve attached the video,

what does this sound mean?

I have a Toyota 2001 4Runner v6 limited 

this happens only when it’s warm 

but when it’s cold it doesn’t make it 

only when we drive 20 minutes and we stop 

it does it by itself 

Is it the vacuum? 

video: https://www.dropbox.com/s/fszpnoax21sziqo/IMG_1234.MOV?dl=0


2 Answers
1

Check under the hood


What do you mean, there is nothing under the hood? What do you want me to look for specifically ?


He did NOT say there is nothing under the hood.


the sound is coming from under the hood, is it not?


I think you got a live one, Joe!



1

If you suspect a vacuum leak, check all the hoses. 

Also check all the pulleys. 

If you’re out of luck, try this technique -

https://youtu.be/QtZ_exbVo24


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