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Unread 09-17-2015, 10:05 AM   #1
joshua5438
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odd noise while driving

I have an 09 Flex that has recently started making a roaring sound. It doesnt seem to get faster with speed but you hear it mostly at 50mph. I am wondering if its a wheel bearing but it doesnt change when you turn either way. I jacked the front tire up last night and noticed an odd sound when I "free" spin the wheel. I have attached a video... is this a normal sound? Any advice is greatly appreciated.

http://vid37.photobucket.com/albums/...psyq6pqupp.mp4

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Unread 09-18-2015, 08:54 AM   #2
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Is it possible your trans was in park while you were spinning the tire?
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Unread 09-18-2015, 10:28 AM   #3
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Quote:
Originally Posted by white89gt View Post
Is it possible your trans was in park while you were spinning the tire?
Nope. But it makes the noise in neutral or in gear.
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Unread 09-18-2015, 10:51 AM   #4
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It's hard to tell from the video, but do you feel the noise is coming from inside the trans? There is a brass bushing right there that the CV axle rides on. I'm wondering if it's spinning in the hole.
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Unread 09-18-2015, 10:55 AM   #5
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This is similar to the bushing I mentioned above. This is from a CD4E though, which is not the same trans you have. Yours is a 6F I believe.

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Unread 09-18-2015, 12:40 PM   #6
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It sounds like its inside the tranny. Both sides make the same noise so I doubt it would be something like that bushing on both sides. I have also wondered it it has something to do with traction control? I am about positive now that my original issue with the drivers side wheel bearing. Hope to have it all looked at next week.
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Unread 09-18-2015, 03:31 PM   #7
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Are your hub and bearings a unit, or are the bearings pressed into the steering knuckle?
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Unread 09-18-2015, 07:09 PM   #8
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I believe it's a single unit.
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Unread 09-28-2015, 11:05 AM   #9
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It was the driver side front wheel bearing making the roaring sound. The ratcheting sound is the limited slip and is completely normal. They are replacing both front wheel bearings since it seems to be a known problem. Only had to pay $50 deductible since my extended warranty covers them.
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