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#3460830 - 08/20/14 10:17 PM Weird sound on cold startup
Benoit Offline


Registered: 01/25/11
Posts: 45
Loc: Quebec, Canada
This is a 2013 Hyundai Elantra 1.8l non-GDI engine with Manual transmission. Car is doing a strange sound on cold start. I mean that it will make this sound only if the car is park for more then 12h or so.
In first clip, listen carefully between 0:04 and 0:06 and on second clip between 0:20 and 0:22.

It sound like a pump who start working right after the engine as been start.
Dealer told me that it's a normal engine sound related to the timing chain but I can't figure how a 11 000km Car can sound like this.
We bought the car on Feburary 5 2014 and we didn't noticed that sound before the car hit 8000km or so.

We run Pennzoil Platinum 5W-20 and Hyudai OEM oil Filter. Oil has been change at 7000km so I don't think it's an oil related problem.

Is anyone has a clue on this?

Youtube Link Video
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#3460836 - 08/20/14 10:29 PM Re: Weird sound on cold startup [Re: Benoit]
crazyoildude Offline


Registered: 07/23/08
Posts: 5683
Loc: new jersey
sounds like a martian space ship..

could that be an electric fan? Hyundai don't have the quietest engines but their 4 cylinder engines seem to run forever. And their warranty is pretty good also

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#3460849 - 08/20/14 10:45 PM Re: Weird sound on cold startup [Re: Benoit]
gregk24 Offline


Registered: 04/13/13
Posts: 3123
Loc: FL, USA
Thats a noisy engine, are you referring to the whirring noise? If so I am not sure what it is, but my Accord makes a similar noise from time to time, although it can happen when warm as well.
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#3460852 - 08/20/14 10:49 PM Re: Weird sound on cold startup [Re: Benoit]
abycat Offline


Registered: 12/06/10
Posts: 1358
Loc: grande prairie AB
sounds kinda bad. Or is that normal? sounds like horribly loose lifters.
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#3460967 - 08/21/14 06:22 AM Re: Weird sound on cold startup [Re: Benoit]
rjundi Offline


Registered: 03/16/04
Posts: 6589
Loc: New England
Warranty? Our 2005 Legacy made a nutty sound like that initially that turned out to be clutch throw out bearing. It could be anything.
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2005 Legacy GT wagon 5mt - 172k - Mobil 5000/OEM Subie filter

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#3461016 - 08/21/14 07:41 AM Re: Weird sound on cold startup [Re: Benoit]
The_Eric Offline


Registered: 03/31/10
Posts: 3524
Loc: Iowa
Reminds me of a secondary air injection pump. How long does it make the noise?
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#3461028 - 08/21/14 08:01 AM Re: Weird sound on cold startup [Re: Benoit]
Propflux01 Offline


Registered: 09/26/02
Posts: 3166
Loc: Arkansastan
The whirring noise is the variable intake manifold runners adjusting. It is normal. They all do it.
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2013 Hyundai Elantra- both killed by tornado
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#3461811 - 08/21/14 08:50 PM Re: Weird sound on cold startup [Re: Benoit]
aquariuscsm Online   content


Registered: 12/30/06
Posts: 10083
Loc: South Texas,USA
Sounds like it's not getting enough lubrication on startup,crazy piston slap or something (as if all the oil drained off the parts overnight and into the pan,not leaving enough oil film behind). Did you change oil brands/weights/dino/synth? Has it been that noisy since new?
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#3461854 - 08/21/14 09:22 PM Re: Weird sound on cold startup [Re: Benoit]
KrisZ Offline


Registered: 12/23/06
Posts: 4380
Loc: Toronto, Canada
Aside from that whirling sound, that I have no idea what it is, the engine sounds like a bucket of bolts and that's during summer months. I can only imagine the racket it must make on -20C mornings crush
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