Mechanical Sound Coming from rear - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

hotfootpowder · 05-22-2015, 02:09 PM

Hi guys,

First post here.

I bought a used 2012 auto 86 a couple of weeks back. I'm starting to notice every time I drive off, there's this sound coming from the rear. It sounds kinda mechanical, like some sort of electric motor/servo is engaged at the rear axle, and it ends with a subtle 'clank'. If anybody has ever tried one of those cars with electronic parking brakes, it sounds something like that when you turn it on.

I also notice it only happen once after I turn on the engine and drive off, and exactly at 17 km/h, either at 1st or 2nd gear. Doesn't happen again until the next time I turn on the engine.

Let me know if anybody else faces the same situation. Sorry for the horrible English, not my native tongue.

Cheers.

mkivsoopra · 05-23-2015, 11:43 PM

Welcome to the forum! Sorry, I'm not familiar with your issue, but your English is better than many native speakers here.

Ultramaroon · 05-24-2015, 12:03 AM

Great forum name. Your English is excellent. Are you able to record the sound?

Welcome!

hotfootpowder · 05-24-2015, 03:24 AM

Thanks.

I'm starting to think it has something to do with the lsd.

here's a video I took just now, best listen with earphones since the volume is a bit faint.

[ame="https://www.youtube.com/watch?v=IKW4IOZkfpA"]Toyota 86 rear sound at 17kmh - YouTube[/ame]

I also notice that this happens only after cold start. doesn't happen when the car is warmed up, even if I turned the engine on and off.

cheers.

05-22-2015, 02:09 PM	#1
hotfootpowder Junior Member Join Date: Apr 2015 Drives: Toyota 86 G Spec Location: Malaysia Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Mechanical Sound Coming from rear Hi guys, First post here. I bought a used 2012 auto 86 a couple of weeks back. I'm starting to notice every time I drive off, there's this sound coming from the rear. It sounds kinda mechanical, like some sort of electric motor/servo is engaged at the rear axle, and it ends with a subtle 'clank'. If anybody has ever tried one of those cars with electronic parking brakes, it sounds something like that when you turn it on. I also notice it only happen once after I turn on the engine and drive off, and exactly at 17 km/h, either at 1st or 2nd gear. Doesn't happen again until the next time I turn on the engine. Let me know if anybody else faces the same situation. Sorry for the horrible English, not my native tongue. Cheers.

05-24-2015, 12:03 AM	#3
Ultramaroon not playing cards Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 32,396 Thanks: 53,053 Thanked 37,225 Times in 19,308 Posts Mentioned: 1117 Post(s) Tagged: 9 Thread(s)	Great forum name. Your English is excellent. Are you able to record the sound? Welcome! __________________ service manuals

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05-23-2015, 11:43 PM	#2
mkivsoopra Senior Member Join Date: Dec 2012 Drives: BRZ Location: CA Posts: 805 Thanks: 939 Thanked 950 Times in 412 Posts Mentioned: 161 Post(s) Tagged: 1 Thread(s)	Welcome to the forum! Sorry, I'm not familiar with your issue, but your English is better than many native speakers here.

05-24-2015, 03:24 AM	#4
hotfootpowder Junior Member Join Date: Apr 2015 Drives: Toyota 86 G Spec Location: Malaysia Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Thanks. I'm starting to think it has something to do with the lsd. here's a video I took just now, best listen with earphones since the volume is a bit faint. [ame="https://www.youtube.com/watch?v=IKW4IOZkfpA"]Toyota 86 rear sound at 17kmh - YouTube[/ame] I also notice that this happens only after cold start. doesn't happen when the car is warmed up, even if I turned the engine on and off. cheers.

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