Pulsating Whine noise - Engine and Car Noises


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Pulsating Whine noise

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Auto Repair Home>> Automotive Repair>> Engine and Car Noises

unclewho
New User

Feb 3, 2014, 7:41 PM

Post #1 of 5 (2288 views)

Pulsating Whine noise	Sign In

Whine begins after 30-60 km/h, only changes pitch at different speeds. Braking, RPM change and aggressive steering does not alter the noise. Sometimes the noise would start/stop after hitting a bump on the road. The link below is a video mainly for audio showing the noise.

https://www.dropbox.com/s/nxbaoju0bzkcq1l/VID_20140203_190535.mp4

2004 Chrysler Sebring 120,000 Km

thanks for all your help :D

GC
User
GC profile image

Feb 3, 2014, 7:57 PM

Post #2 of 5 (2278 views)

Re: Pulsating Whine noise	Sign In

Anything rubbing on the wheels/axle shafts? Anything loose on body (plastic shields, weatherstripping)? Look closely at the front of the car checking for things that could vibrate at speed. Also look for those little "animal repelling" "ultrasonic" air horns.

Look like this.

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

unclewho
New User

Feb 3, 2014, 8:17 PM

Post #3 of 5 (2274 views)

Re: Pulsating Whine noise	Sign In

Didn't see anything that stuck out, everything is coated in salt so I would've see some area with it rubbed off. Is this possibly a bearing?

nickwarner
Veteran / Moderator
nickwarner profile image

Feb 4, 2014, 7:38 AM

Post #4 of 5 (2250 views)

Re: Pulsating Whine noise	Sign In

I've never heard a bearing make a high pitched whine like that. That noise is made by something thin. Bearings are a lower growl type of noise. Get a very good look at the thin steel shields behind your brake rotor. If they were making light contact with the rotor you can hear something like that. They could be rusted up and starting to move easily, and hitting a decent chunk of snow would be more than enought to push it into making contact with the rotor.

unclewho
New User

Feb 4, 2014, 10:58 AM

Post #5 of 5 (2235 views)

Re: Pulsating Whine noise	Sign In

Ya that makes sense I'll take off the wheel later today and take a look

Thanks

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