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@004 Mazda 6 making a whining noise


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briandavis
Novice

Nov 11, 2014, 8:14 AM

Post #1 of 9 (1900 views)
@004 Mazda 6 making a whining noise Sign In

I have a 2004 Mazda 6 and its making a whining noise when running and idles rough. Code says its a cam sensor. Would that cause a whining noise from under the hood. Heres where you can find a you tube video www.youtube.com/watch?v=I7CeVHVeJZk


(This post was edited by briandavis on Nov 11, 2014, 8:40 AM)


Tom Greenleaf
Ultimate Carjunky / Moderator
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Nov 11, 2014, 8:48 AM

Post #2 of 9 (1881 views)
Re: @004 Mazda 6 making a whining noise Sign In

Noises tough even with the video. For now IDK but will show it as a link.........
https://www.youtube.com/watch?v=I7CeVHVeJZk


To me that noise is more like an electric motor failing. Why the idle not so sure so let other chime in.


Code - please post the # but it has one and may have nothing to do with the noise,


T



briandavis
Novice

Nov 11, 2014, 8:57 AM

Post #3 of 9 (1874 views)
Re: @004 Mazda 6 making a whining noise Sign In

Thank you so muchSmile I dont have the code was at Advance this morning. I just find it hard to believe that sensor is causing that whining noise.


(This post was edited by briandavis on Nov 11, 2014, 9:05 AM)


Tom Greenleaf
Ultimate Carjunky / Moderator
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Nov 11, 2014, 9:11 AM

Post #4 of 9 (1857 views)
Re: @004 Mazda 6 making a whining noise Sign In

I may not be around too much for some of the day but will suggest some things you could try if you can.
To me the noise could be travelling away from where you might think the source is. It's clear enough you could probably hear it with a mechanic's stethoscope or just a listening rod to your ear. Careful doing that around moving parts.


Could rule out any belt driven item by taking belt off and just run for a quick while to see if noise goes away and if so spin the items on that belt by hand for feel.


To me that noise sounded almost exactly like a small electric motor like a washer pump - power door lock size motor type something gone bad or disconnected and would have to be to spin that much but not near the engine at all. The ticking sounded like normal noise to me from injectors.


That's about it until you can peg it down more precisely. I doubt crank sensor makes that noise even if there's a problem with that circuit?


T



briandavis
Novice

Nov 11, 2014, 9:47 AM

Post #5 of 9 (1846 views)
Re: @004 Mazda 6 making a whining noise Sign In

heres another video where it starts to make a hallow like grinding noise....www.youtube.com/watch?v=jU5KsqkJ-v8&feature=youtu.be


GC
User
GC profile image

Nov 11, 2014, 11:32 PM

Post #6 of 9 (1802 views)
Re: @004 Mazda 6 making a whining noise Sign In

First things first, I would get that cam sensor code resolved.

That noise is tough. Would need to be there to hear what area it is coming from. Smog pump,alternator, cooling fan, anything that moves really could make that noise, including engine components.


____________________________________________________
Willing to help, willing to learn... Rob


Discretesignals
Ultimate Carjunky / Moderator
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Nov 13, 2014, 5:48 AM

Post #7 of 9 (1775 views)
Re: @004 Mazda 6 making a whining noise Sign In

Sounds like a vacuum leak. If you snap the throttle, does the noise go away? Take a spray bottle with water and spray around the intake manifold. If you hit the leak, it will make a sucking noise and change pitch.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Nov 13, 2014, 5:49 AM)


briandavis
Novice

Nov 18, 2014, 1:54 PM

Post #8 of 9 (1733 views)
Re: @004 Mazda 6 making a whining noise Sign In

It was a huge vacuum leak between plastic intake manifold and motor. Manifold had cracked somehow


Tom Greenleaf
Ultimate Carjunky / Moderator
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Nov 18, 2014, 2:51 PM

Post #9 of 9 (1729 views)
Re: @004 Mazda 6 making a whining noise Sign In

Welllllll! That would do it! Dang plastic engine partsMad Glad it's found and fixed,


T







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