Resonance at around 70 MPH? - Page 9 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

pantdino · 08-29-2015, 08:07 PM

Quote:

Originally Posted by 86Tony

Why does the diff produce this noise?

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The diff is a fairly complex assembly of gears. If something isn't adjusted right when it is assembled the gears make noise and will wear prematurely.

rjgough95 · 09-04-2015, 11:22 AM

Ive had this problem and im about to start going through the process of getting it fixed at my Subaru dealership.

Monoman · 09-18-2015, 09:33 AM

Has anyone gotten a fix from the dealership yet?

rjgough95 · 10-12-2015, 12:39 PM

Like last post asked has anyone done this and or have details on what was done because i a about to start the process of getting this fixed but i am wanting to do my new final drive but this is holding me up at the moment.

86Tony · 11-07-2015, 09:35 AM

Found out that it was my tires, cant believe how noisy hankook rs3 are

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rjgough95 · 12-22-2015, 02:34 PM

In the process right now with the Subaru dealership and Subaru getting this issue resolved on my car.

Monoman · 12-22-2015, 10:13 PM

Quote:

Originally Posted by rjgough95

In the process right now with the Subaru dealership and Subaru getting this issue resolved on my car.

Let us all know what they find .. if anything.

chaoskaze · 12-23-2015, 08:28 AM

Stock sound tube is annoying @ that speed. Clog it up!

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rjgough95 · 02-17-2016, 08:51 AM

Update:

Had my car at Subaru and they took it out to try and replicate the noise but were unable to but noted that i had a loud aftermarket exhaust ofcourse. I had sent them a sound recording before hand that you could clearly hear the noise between 68 to 72 MPH. My plan is after talking with them is to take someone out hopefully this Saturday and have them hear the noise.

Astral Abyss · 02-17-2016, 05:09 PM

I have this issue at 68-71mph on my new 2016 as well, since day 1. My solution to the problem is to not linger at those speeds. Secondary solution is to turn up the volume on my stereo. It's worked well for the past 5000 miles. I wouldn't let the dealership anywhere near my differential unless I had no other option. End up with some scrub tech working on it and you'll be in for worse trouble down the road instead of a little noise.

rjgough95 · 02-18-2016, 09:26 AM

Quote:

Originally Posted by Astral Abyss

I have this issue at 68-71mph on my new 2016 as well, since day 1. My solution to the problem is to not linger at those speeds. Secondary solution is to turn up the volume on my stereo. It's worked well for the past 5000 miles. I wouldn't let the dealership anywhere near my differential unless I had no other option. End up with some scrub tech working on it and you'll be in for worse trouble down the road instead of a little noise.

Yes any other time i would not trust a tech to work on something like that but being that i know the one at the dealership and he also told me that they would not be working on the diff itself they would change it out for an entirely different one.

Astral Abyss · 02-18-2016, 10:40 AM

Quote:

Originally Posted by rjgough95

Yes any other time i would not trust a tech to work on something like that but being that i know the one at the dealership and he also told me that they would not be working on the diff itself they would change it out for an entirely different one.

If you know the person working on your car that makes a huge difference, especially at a dealership.

rjgough95 · 03-10-2016, 09:57 AM

Scheduled this Saturday morning first thing to drive a mechanic in the car and point out the noise to them so see how that goes.

bjreynolds202 · 03-10-2016, 02:51 PM

If you have stock exhaust, and add Whiteline bushing inserts to the trans, differential and subframe, this noise will increase quite noticeably as a high pitch whistle right around 69-73mph for me. I never noticed it before the bushing inserts. No whistle at 35mph, but slight vibration from the bushings. Definitely coming from differential though. speed dependent and not throttle input. Just my personal experience.

02-17-2016, 08:51 AM	#121
rjgough95 Member Join Date: Oct 2014 Drives: 13 Subaru BRZ, 02 7.3 F350 Diesel Location: virginia fauquier Posts: 87 Thanks: 19 Thanked 13 Times in 13 Posts Mentioned: 0 Post(s) Tagged: 2 Thread(s)	Update: Had my car at Subaru and they took it out to try and replicate the noise but were unable to but noted that i had a loud aftermarket exhaust ofcourse. I had sent them a sound recording before hand that you could clearly hear the noise between 68 to 72 MPH. My plan is after talking with them is to take someone out hopefully this Saturday and have them hear the noise. __________________ 2.5" Non-resonated Perrin catback - Hks dual resonator front pipe - Borla UEL headers - K&N drop in - Supertek intake pipe - Megans Racing strut bar - Racer X Fabrication cylinder brace - Valenti tail lights - Veloxs Motorsports front splitter - Galvez Customs rear diffuser - Open Flash Tuner - GCS paddles - Apex ARC8 Track Wheels

03-10-2016, 09:57 AM	#125
rjgough95 Member Join Date: Oct 2014 Drives: 13 Subaru BRZ, 02 7.3 F350 Diesel Location: virginia fauquier Posts: 87 Thanks: 19 Thanked 13 Times in 13 Posts Mentioned: 0 Post(s) Tagged: 2 Thread(s)	Scheduled this Saturday morning first thing to drive a mechanic in the car and point out the noise to them so see how that goes. __________________ 2.5" Non-resonated Perrin catback - Hks dual resonator front pipe - Borla UEL headers - K&N drop in - Supertek intake pipe - Megans Racing strut bar - Racer X Fabrication cylinder brace - Valenti tail lights - Veloxs Motorsports front splitter - Galvez Customs rear diffuser - Open Flash Tuner - GCS paddles - Apex ARC8 Track Wheels

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Astral Abyss Member Join Date: Apr 2015 Drives: 2016 Halo FR-S Location: Tucson, AZ Posts: 66 Thanks: 19 Thanked 43 Times in 21 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I have this issue at 68-71mph on my new 2016 as well, since day 1. My solution to the problem is to not linger at those speeds. Secondary solution is to turn up the volume on my stereo. It's worked well for the past 5000 miles. I wouldn't let the dealership anywhere near my differential unless I had no other option. End up with some scrub tech working on it and you'll be in for worse trouble down the road instead of a little noise.

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