AUTO FRS, GRINDING SOUND COMING FROM UNDERNEATH? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Charleswinky · 05-19-2013, 07:57 PM

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!!!!!!

FirestormFRS · 05-19-2013, 08:22 PM

Sounds like the stability/traction control. Mine does it every time I go from the street to my steep driveway.

Charleswinky · 05-19-2013, 08:29 PM

Does that mean theres something wrong with my car? Do u have the grinding/slight vibration when accelerating when turning also?

5th 86 · 05-19-2013, 08:44 PM

Try turnIng off the tc and stability, if its gone then i think its normal

sdshores08 · 05-19-2013, 11:40 PM

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.

Ganthrithor · 05-19-2013, 11:56 PM

Quote:

Originally Posted by sdshores08

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?

Lonewolf · 05-20-2013, 12:01 AM

Wrong forum

Charleswinky · 05-20-2013, 12:26 AM

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

Ocala FR-S · 05-20-2013, 11:35 PM

Quote:

Originally Posted by Lonewolf

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.

Lonewolf · 05-20-2013, 11:55 PM

Quote:

Originally Posted by Ocala FR-S

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.

Lonewolf · 05-20-2013, 11:57 PM

Quote:

Originally Posted by Charleswinky

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...

SpyderDan · 05-21-2013, 02:25 AM

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.

Ocala FR-S · 05-21-2013, 08:51 PM

Quote:

Originally Posted by Lonewolf

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.

05-19-2013, 07:57 PM	#1
Charleswinky Member Join Date: Apr 2013 Drives: 2013 scion frs Location: California, USA Posts: 31 Thanks: 23 Thanked 8 Times in 5 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	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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05-19-2013, 08:22 PM	#2
FirestormFRS Senior Member Join Date: Jul 2012 Drives: 2013 FR-S Location: Anytown Posts: 920 Thanks: 73 Thanked 643 Times in 302 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Sounds like the stability/traction control. Mine does it every time I go from the street to my steep driveway.

05-19-2013, 08:29 PM	#3
Charleswinky Member Join Date: Apr 2013 Drives: 2013 scion frs Location: California, USA Posts: 31 Thanks: 23 Thanked 8 Times in 5 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Does that mean theres something wrong with my car? Do u have the grinding/slight vibration when accelerating when turning also?

05-19-2013, 08:44 PM	#4
5th 86 Senior Member Join Date: Mar 2013 Drives: 2013 BRZ SPORT TECH Location: CANADA Posts: 306 Thanks: 31 Thanked 98 Times in 68 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Try turnIng off the tc and stability, if its gone then i think its normal

05-19-2013, 11:40 PM	#5
sdshores08 Member Join Date: Jun 2012 Drives: 2013 Ultramarine FR-S, AT Location: Socal Posts: 33 Thanks: 16 Thanked 6 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	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.

05-20-2013, 12:01 AM	#7
Lonewolf Senior Member Join Date: Dec 2011 Drives: Moped Location: CA Posts: 4,298 Thanks: 4,897 Thanked 2,128 Times in 1,193 Posts Mentioned: 21 Post(s) Tagged: 0 Thread(s)	Wrong forum

05-20-2013, 12:26 AM	#8
Charleswinky Member Join Date: Apr 2013 Drives: 2013 scion frs Location: California, USA Posts: 31 Thanks: 23 Thanked 8 Times in 5 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	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

05-21-2013, 02:25 AM	#12
SpyderDan Toyota hoarder Join Date: Jan 2012 Drives: 10 Series FR-S, 05 xB, MR-S GT-300 Location: Los Angeles, CA Posts: 136 Thanks: 35 Thanked 122 Times in 52 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	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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