follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Speed By Design
Register Garage Members List Calendar Search Today's Posts Mark Forums Read

Go Back   Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB > Technical Topics > Issues | Warranty | Recalls / TSB

Issues | Warranty | Recalls / TSB Problems, issues, recalls, TSBs


User Tag List

Reply
 
Thread Tools Search this Thread
Old 10-13-2014, 07:04 PM   #85
billwot
Senior Member
 
Join Date: Mar 2014
Drives: '11 Cayman , '14 Camry, '11 Tacoma
Location: Eastern NC
Posts: 509
Thanks: 57
Thanked 396 Times in 198 Posts
Mentioned: 5 Post(s)
Tagged: 1 Thread(s)
Its momentary belt slippage when the compressor is engage under load...common m many vehicles since the advent of 134A. And it is worse in hot weather. Higher temps mean higher head pressure, which means higher starting load.

Belt dressing will silence it short term. Tightening the belt will fix it but that increases the load on the shaft bearings.

Better just to ignore it, IMO.
billwot is offline   Reply With Quote
Old 10-13-2014, 07:06 PM   #86
billwot
Senior Member
 
Join Date: Mar 2014
Drives: '11 Cayman , '14 Camry, '11 Tacoma
Location: Eastern NC
Posts: 509
Thanks: 57
Thanked 396 Times in 198 Posts
Mentioned: 5 Post(s)
Tagged: 1 Thread(s)
Quote:
Originally Posted by Ozzman View Post
I'm wondering if washing the engine bay/AC compressor will alleviate the noise. Just rinse it down with a very light spray of soapy water then clean water I think it may just be some dust between the AC clutch plate/pulley making the noise.


However do NOT use harsh soap and strong spray of water as you do not want force any water into the electronics and pulley bearings.
Moisture on the belt or pulley will aggrevate the slippage.
billwot is offline   Reply With Quote
Old 09-18-2015, 04:03 PM   #87
OBLCDio
Member
 
Join Date: Sep 2014
Drives: 2013 Scion FRS 10 Series
Location: USA
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Thread Necro!

I just started noticing this same chirp and I actually captured it on film. Once the engine rev dies down you'll notice the AC kick on and chirp.

OBLCDio is offline   Reply With Quote
Old 09-18-2015, 04:08 PM   #88
juliog
Senior Member
 
juliog's Avatar
 
Join Date: Jan 2013
Drives: 86
Location: Green Hell
Posts: 930
Thanks: 1,269
Thanked 924 Times in 390 Posts
Mentioned: 55 Post(s)
Tagged: 1 Thread(s)
Garage
I found the solution: AC delete.
juliog is offline   Reply With Quote
Old 03-23-2017, 01:18 PM   #89
chipmunk
Senior Member
 
Join Date: Mar 2017
Drives: _
Location: _
Posts: 440
Thanks: 50
Thanked 178 Times in 104 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Need to resurrect this topic.
I'm having a squeak issue with my BRZ. After searching the whole internet and all available forums, this sounds the closest. Here are my symptoms:


* Makes a high-pitch chipmunk-like "squeak" noise every 15-25 seconds, only when moving. Nothing while at rest. I noticed it around 3000-4000 rpm.
* Does not happen always. Perhaps 2 out of 5 times I drive.
* Does not depend on outside temperatures.
* It does not happen when I take it to a dealer for diagnosis
* This is NOT the fuel pump continuous chirp. I hear that too.


Does any one have any videos so I can compare? I tried to record my audio, but I couldn't capture the noise.
chipmunk is offline   Reply With Quote
The Following User Says Thank You to chipmunk For This Useful Post:
TorontoNat (11-14-2017)
Old 03-23-2017, 04:16 PM   #90
billwot
Senior Member
 
Join Date: Mar 2014
Drives: '11 Cayman , '14 Camry, '11 Tacoma
Location: Eastern NC
Posts: 509
Thanks: 57
Thanked 396 Times in 198 Posts
Mentioned: 5 Post(s)
Tagged: 1 Thread(s)
Quote:
Originally Posted by chipmunk View Post
Need to resurrect this topic.
I'm having a squeak issue with my BRZ. After searching the whole internet and all available forums, this sounds the closest. Here are my symptoms:


* Makes a high-pitch chipmunk-like "squeak" noise every 15-25 seconds, only when moving. Nothing while at rest. I noticed it around 3000-4000 rpm.
* Does not happen always. Perhaps 2 out of 5 times I drive.
* Does not depend on outside temperatures.
* It does not happen when I take it to a dealer for diagnosis
* This is NOT the fuel pump continuous chirp. I hear that too.


Does any one have any videos so I can compare? I tried to record my audio, but I couldn't capture the noise.
Guys, this really isn't complicated. Think about it

You have a belt-driven load device (the compressor) that cycles on and off. Under running conditions it starts under load (there is still significant head pressure). When that load is suddenly applied to the drive belt, there's brief momentary slippage. Slippage = squeak.

It's pretty much like squealing your tires...power suddenly applied to a static load.

This has been a characteristic of many auto A/C systems ever since we transitioned off of R12.

You can stop the chirp if you tighten belt enough, but to me, the increased load on the shaft bearing isn't worth the "none-problem" of the chirp.
billwot is offline   Reply With Quote
The Following User Says Thank You to billwot For This Useful Post:
humfrz (03-24-2017)
Old 03-24-2017, 05:46 AM   #91
chipmunk
Senior Member
 
Join Date: Mar 2017
Drives: _
Location: _
Posts: 440
Thanks: 50
Thanked 178 Times in 104 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
I have heard of a case where the noise actually came feom a bad clutch throwour bearing and slave cylinder (https://www.caranddriver.com/amp/rev...wrap-up-review). That's why I'm concerned - what if it's not the AC in my case, but something more serious?
chipmunk is offline   Reply With Quote
Old 03-24-2017, 08:51 AM   #92
billwot
Senior Member
 
Join Date: Mar 2014
Drives: '11 Cayman , '14 Camry, '11 Tacoma
Location: Eastern NC
Posts: 509
Thanks: 57
Thanked 396 Times in 198 Posts
Mentioned: 5 Post(s)
Tagged: 1 Thread(s)
Quote:
Originally Posted by chipmunk View Post
I have heard of a case where the noise actually came feom a bad clutch throwour bearing and slave cylinder (https://www.caranddriver.com/amp/rev...wrap-up-review). That's why I'm concerned - what if it's not the AC in my case, but something more serious?

Turn off A/C and defrost and see if the sound goes away. Pretty simple diagnostic.
billwot is offline   Reply With Quote
The Following User Says Thank You to billwot For This Useful Post:
Tcoat (03-24-2017)
Old 03-29-2017, 05:13 PM   #93
chipmunk
Senior Member
 
Join Date: Mar 2017
Drives: _
Location: _
Posts: 440
Thanks: 50
Thanked 178 Times in 104 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Taken it to a Subaru dealer. He inspected and says it's clutch throwout bearing. Apparently he has 25 years of experience, so I guess I'll take his word for it.
What bothers me is that I never abused the transmission or the clutch. Yet my bearing didn't last 22,000 miles!
chipmunk is offline   Reply With Quote
Old 03-29-2017, 05:20 PM   #94
Tcoat
Senior Member
 
Tcoat's Avatar
 
Join Date: Jul 2014
Drives: 2020 Hakone
Location: London, Ont
Posts: 69,845
Thanks: 61,656
Thanked 108,283 Times in 46,456 Posts
Mentioned: 2494 Post(s)
Tagged: 50 Thread(s)
Quote:
Originally Posted by chipmunk View Post
Taken it to a Subaru dealer. He inspected and says it's clutch throwout bearing. Apparently he has 25 years of experience, so I guess I'll take his word for it.
What bothers me is that I never abused the transmission or the clutch. Yet my bearing didn't last 22,000 miles!
There are loads of TOBs on here that didn't last any longer than yours. Also many that have. It is still a mystery why some go early.
__________________
Racecar spelled backwards is Racecar, because Racecar.
Tcoat is offline   Reply With Quote
Old 07-04-2020, 05:04 PM   #95
ThatCarGuyClayton
Member
 
ThatCarGuyClayton's Avatar
 
Join Date: Dec 2015
Drives: N/A
Location: Texas
Posts: 36
Thanks: 31
Thanked 25 Times in 14 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
My 2013 just started doing this today at 80,000 miles
ThatCarGuyClayton is offline   Reply With Quote
The Following User Says Thank You to ThatCarGuyClayton For This Useful Post:
humfrz (07-04-2020)
Old 07-04-2020, 07:17 PM   #96
humfrz
Senior Member
 
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 29,861
Thanks: 28,777
Thanked 31,795 Times in 16,418 Posts
Mentioned: 707 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by ThatCarGuyClayton View Post
My 2013 just started doing this today at 80,000 miles
Welp, so, if it is a bad TOB, I reckon it's time to replace/have it replaced.

Don't wait till it explodes and takes everything with it, like ol @Tcoat did -

He has post explosion pictures - very messy.
humfrz is offline   Reply With Quote
Old 07-04-2020, 07:19 PM   #97
chipmunk
Senior Member
 
Join Date: Mar 2017
Drives: _
Location: _
Posts: 440
Thanks: 50
Thanked 178 Times in 104 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by ThatCarGuyClayton View Post
My 2013 just started doing this today at 80,000 miles
AC compressor tweeting? Or throw-out bearing squealing?

Sent from a potato
chipmunk is offline   Reply With Quote
The Following User Says Thank You to chipmunk For This Useful Post:
humfrz (07-04-2020)
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 11:03 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.