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Old 05-19-2013, 07:57 PM   #1
Charleswinky
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Exclamation AUTO FRS, GRINDING SOUND COMING FROM UNDERNEATH?

Hi im charles, im new to the forum, and i would js like to ask if its normal for an automatic FRS to have a grinding sound from underneath the center of the car (driveshaft area i suppose) whenever i make a turn accelerating from dead stop.. Has anyone had same issues??? Would appreciate the help.. Im frustrated thanks!!!!!!
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Old 05-19-2013, 08:22 PM   #2
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Sounds like the stability/traction control. Mine does it every time I go from the street to my steep driveway.
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Old 05-19-2013, 08:29 PM   #3
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Does that mean theres something wrong with my car? Do u have the grinding/slight vibration when accelerating when turning also?
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Old 05-19-2013, 08:44 PM   #4
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Try turnIng off the tc and stability, if its gone then i think its normal
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Old 05-19-2013, 11:40 PM   #5
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I've noticed this too, and it seems to be getting worse. For me it's not just a noise, I feel as if the car is shuddering from the back when I accelerate from a stop while turning. It seems to go away once the car is warm though, so I was assuming it was maybe the differential when it is cold. I'll try turning off traction control and seeing if it still happens, but the light never comes on when it happens so I don't know if traction control is the problem.
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Old 05-19-2013, 11:56 PM   #6
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Originally Posted by sdshores08 View Post
I've noticed this too, and it seems to be getting worse. For me it's not just a noise, I feel as if the car is shuddering from the back when I accelerate from a stop while turning. It seems to go away once the car is warm though, so I was assuming it was maybe the differential when it is cold. I'll try turning off traction control and seeing if it still happens, but the light never comes on when it happens so I don't know if traction control is the problem.
I get this too on my MT BRZ, particularly on loose surfaces (dirt / gravel). I was thinking it may just be the LSD doing its thing?
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Old 05-20-2013, 12:01 AM   #7
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Wrong forum
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Old 05-20-2013, 12:26 AM   #8
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Oh im so sorry i didnt notice. My bad.. Ill move it now. Is there any way this can be deleted. What a shame. Sorry admin
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Old 05-20-2013, 11:35 PM   #9
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Wrong forum
Really? We don't even know what the noise is to be categorizing it.

Anyway, try the same thing with your windows down. I find the inside rear wheel will sort of scrub/hop when taking off on a turn from a dead stop. Could be you hear/feel that. It's all good.
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Old 05-20-2013, 11:55 PM   #10
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Really? We don't even know what the noise is to be categorizing it.

Anyway, try the same thing with your windows down. I find the inside rear wheel will sort of scrub/hop when taking off on a turn from a dead stop. Could be you hear/feel that. It's all good.
Yeah, really. This was the same post that was posted in the problems/issues subforum as well. If everyone double-posted like this guy we would have to sift through all the duplicity constantly, resulting in wasted time and storage capacity used. There is a subforum dedicated to diagnosing, reporting issues, and that's where this post belongs.

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Old 05-20-2013, 11:57 PM   #11
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Oh im so sorry i didnt notice. My bad.. Ill move it now. Is there any way this can be deleted. What a shame. Sorry admin
No worries, you're new . I hope that the noise is a non-issue or gets resolved painlessly for ya...
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Old 05-21-2013, 02:25 AM   #12
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Torsen differential. If it is loud and sounds like grinding, you've got trouble. Go reproduce the noise for your dealer and get your diff replaced on warranty.
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Old 05-21-2013, 08:51 PM   #13
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Yeah, really. This was the same post that was posted in the problems/issues subforum as well. If everyone double-posted like this guy we would have to sift through all the duplicity constantly, resulting in wasted time and storage capacity used. There is a subforum dedicated to diagnosing, reporting issues, and that's where this post belongs.

Sounds like another problem/issue.
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