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> Humming Noise, When I Turn Off

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Barrie
post 30 Nov 2008, 05:48
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Hi Guys,

I've noticed just recently when I turn the motor off, there is a humming noise that carries on for another minute or a little longer.
I think I've traced it to the brake servo loosing it's vacuum; is this normal?
Or do I have a warning sign of impending disaster?
Has anyone had the same noise?

Regards, Barrie. sad.gif


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paul_damian
post 30 Nov 2008, 11:21
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Are you sure it's not the cooling fan?


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raqzvan
post 30 Nov 2008, 12:19
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It's probably the GMV (the big cooling fan on the radiator). It's normal.


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Barrie
post 4 Dec 2008, 03:41
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Hi Guys,

No it's not the cooling fan, I know the sound that makes; the humming sound I hear happens when the motor is cold as well as warm.
Any other ideas?

Regards, Barrie. sad.gif sad.gif


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nh1980ro
post 4 Dec 2008, 16:09
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Is it in front of the car (where the engine is) or in the back (where the fuel tank is)?
Sometimes the fuel pump makes some noise when you turn off the engine, but I don't think it takes more than a few seconds.


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mario1980
post 5 Dec 2008, 10:48
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From: Iasi
nhl1980ro, he said it appears to come from the servo mechanism, loosing it's vacuum...

Barrie, after the noise has stopped, press the brake pedal for the first time after turning off the engine, and if it is "hard", than it might be a problem, you should see the service. If the pedal behaves, normal, as with the the engine on, it should be OK. Remember, only the fist time after the engine stopped.
If I remember correctly, the vacuum in my servo remains for many hours...

One other sound you can hear from an engine, is the sound of the oil, pouring inside it, but I doubt you can hear it from inside.


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martin245
post 7 Dec 2008, 02:29
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I think you have a bee in your bonnet
Stu


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Barrie
post 7 Dec 2008, 05:49
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Hi Guys,

I think Mario has hit the spot, when the humming noise stops, the brake peddle is hard, like he says. Now I have something positive to show, I'll ask the garage to investigate.

Tell Stu, I've always got a bee in my bonnet.

Sorry about the badges, shall I use stronger glue?

Thanks Mario. I owe you one.

Regards, Barrie.


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Barrie
post 15 Jan 2009, 18:44
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Hi Guys,

Not only do I have a bee in my bonnet, I also have a feather in my cap.
Because I managed to drive to northern England from southern France, without having my Dacia badges stolen, is this a record I ask?
As for the Bee, I'm told it's normal, and nothing to worry about.

Regards, Barrie. rolleyes.gif

This post has been edited by Barrie: 15 Jan 2009, 18:46


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