High Pitch Whine? - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

humfrz · 01-18-2016, 12:55 AM

Quote:

Originally Posted by 636

Someone brought up the suggestion of dying Alternator Diodes. It kind of would make sense, as my car has been sluggishly turning on the last two/three months, as if it doesn't have enough power to start.

Think that may be the culprit?

I don't understand how the alternator diodes could "whine"...??

If you car is slow in starting, you may wish to check the health of the battery and alternator:

http://www.aa1car.com/library/battery_runs_down.htm

humfrz

Packofcrows · 01-18-2016, 01:36 AM

I have whine in 6th gear only. Got me thinking now... hm...

Ultramaroon · 01-18-2016, 02:06 PM

Quote:

Originally Posted by 636

Someone brought up the suggestion of dying Alternator Diodes. It kind of would make sense, as my car has been sluggishly turning on the last two/three months, as if it doesn't have enough power to start.

Think that may be the culprit?

A distinct possibility. This jogs my memory of a failed alternator a long time ago. You can really hear it when the regulator feeds pulsed current to the rotor winding.

Celica00 · 01-19-2016, 02:30 AM

The sound in the clip sounds an awful lot like an alternator issue. As others have said. However my RSX had a similar noise that increased pitch w/ revs and it turned out to be my power steering. Different cars obviously but it could still be a possibility.

fumanchu1 · 01-19-2016, 11:22 AM

Quote:

Originally Posted by 636

Hey guys, recently I've been hearing this high pitch whine coming from the front end of my car. It reminds me of a straight cut gear, or even a supercharger whine. I've never heard before this, and it's very random. Only seems to pop up when it wants to.

I got a quick video of it, hopefully you can hear it.

Any ideas?

Do you have a supercharger ? In all seriousness though no clue

fumanchu1 · 01-19-2016, 11:27 AM

Quote:

Originally Posted by humfrz

To follow up on ol @Ultramaroon 's theory, I'd suggest you find a long screwdriver or a metal rod and place one end up near your ear and touch the other end around on things in the engine (like the belt driven things) to see if you can isolate the sound/noise.

humfrz

Just make sure to not put the screwdriver in the belt engagement while your ear is pressed on it or else

fumanchu1 · 01-19-2016, 11:28 AM

I have whine, It's called a supercharger... carry on

Ultramaroon · 01-19-2016, 12:58 PM

@636, I remain in agreement with your friend who first mentioned the alternator. It jogged my memory of a first hand experience.

Any updates?

Captain Curt · 01-19-2016, 02:11 PM

Hate to thread hijack, but what wheels are those?

636 · 01-20-2016, 02:39 PM

Quote:

Originally Posted by Captain Curt

Hate to thread hijack, but what wheels are those?

XXR 550!

xxthrillxx · 01-22-2016, 01:36 PM

I have the same sound coming from mine. It actually sounds more like a hissing whine. On mine you dont have to be rolling and it seems to come alive when the clutch is pressed in. almost like a vacuum leak.

HAve you taken yours to the dealer? or any updates?

Ultramaroon · 01-22-2016, 03:06 PM

Quote:

Originally Posted by xxthrillxx

I have the same sound coming from mine. It actually sounds more like a hissing whine. On mine you dont have to be rolling and it seems to come alive when the clutch is pressed in. almost like a vacuum leak.

HAve you taken yours to the dealer? or any updates?

how many miles on yours? Can you get it on wax?

xxthrillxx · 01-22-2016, 03:08 PM

Quote:

Originally Posted by Ultramaroon

how many miles on yours? Can you get it on wax?

I have 62k miles on it.... on wax?

Sent from my SM-N920T using Tapatalk

Ultramaroon · 01-22-2016, 03:12 PM

Quote:

Originally Posted by xxthrillxx

I have 62k miles on it.... on wax?

Sent from my SM-N920T using Tapatalk

Can you get a recording of the sound. LP masters are cut into wax disks. I'm old.

Possibly TOB. Gotta hear it, though.

01-18-2016, 01:36 AM	#16
Packofcrows hey you, yeah you <3 Join Date: Jul 2012 Drives: 2014 37J FR-S Location: Monterey County, CA Posts: 2,713 Thanks: 905 Thanked 1,257 Times in 809 Posts Mentioned: 38 Post(s) Tagged: 3 Thread(s)	I have whine in 6th gear only. Got me thinking now... hm... __________________ Got my TRD wheels and TRD louvers. Thanks!!!

01-19-2016, 12:58 PM	#22
Ultramaroon 義理チョコ Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 31,865 Thanks: 52,120 Thanked 36,513 Times in 18,917 Posts Mentioned: 1106 Post(s) Tagged: 9 Thread(s)	@636, I remain in agreement with your friend who first mentioned the alternator. It jogged my memory of a first hand experience. Any updates? __________________ service manuals

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01-19-2016, 02:30 AM	#18
Celica00 Senior Member Join Date: Sep 2012 Drives: 86 Location: utah Posts: 1,156 Thanks: 842 Thanked 798 Times in 434 Posts Mentioned: 8 Post(s) Tagged: 2 Thread(s)	The sound in the clip sounds an awful lot like an alternator issue. As others have said. However my RSX had a similar noise that increased pitch w/ revs and it turned out to be my power steering. Different cars obviously but it could still be a possibility.

01-19-2016, 11:28 AM	#21
fumanchu1 Senior Member Join Date: Sep 2015 Drives: 2013 Brz C38 (bought not built :P) Location: Gatineau, Qc, Canada Posts: 1,914 Thanks: 422 Thanked 1,249 Times in 802 Posts Mentioned: 8 Post(s) Tagged: 6 Thread(s)	I have whine, It's called a supercharger... carry on

01-19-2016, 02:11 PM	#23
Captain Curt Member Join Date: Oct 2015 Drives: 2015 Scion FR-S Base MT Location: Oceanside, CA Posts: 38 Thanks: 3 Thanked 9 Times in 9 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Hate to thread hijack, but what wheels are those?

01-22-2016, 01:36 PM	#25
xxthrillxx Perfectly Balanced... Join Date: May 2012 Drives: '13 FRS & '13 BRZ Location: Inglewood, CA Posts: 209 Thanks: 62 Thanked 94 Times in 50 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	I have the same sound coming from mine. It actually sounds more like a hissing whine. On mine you dont have to be rolling and it seems to come alive when the clutch is pressed in. almost like a vacuum leak. HAve you taken yours to the dealer? or any updates?

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