|
Issues | Warranty | Recalls / TSB Problems, issues, recalls, TSBs |
|
Thread Tools | Search this Thread |
03-12-2018, 07:37 PM | #1 |
Member
Join Date: Mar 2018
Drives: 2013 BRZ
Location: Chino
Posts: 15
Thanks: 2
Thanked 9 Times in 3 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
BRZ AC Rattle?
New to the forums!
I found some stuff that were related to my issue when I used the "Search" feature. But most of them described a chirp or flapping noise. This is a definite rattle noise. only happens with the AC on. Any help is appreciated. |
03-12-2018, 09:54 PM | #2 | |
Senior Member
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 29,866
Thanks: 28,787
Thanked 31,813 Times in 16,424 Posts
Mentioned: 708 Post(s)
Tagged: 2 Thread(s)
|
Quote:
What engine mods do you have ..?? Does it sound like the sound is coming from the compressor ..?? So, it doesn't make the sound if the compressor clutch is NOT engaged .. ?? Is the system cooling OK ..?? Come back. humfrz |
|
03-12-2018, 10:02 PM | #3 | |
Member
Join Date: Mar 2018
Drives: 2013 BRZ
Location: Chino
Posts: 15
Thanks: 2
Thanked 9 Times in 3 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Quote:
It sounds like it's coming from the vibration of the pulley in the video. Cooling system is fine. Yeah there is no sound when AC is off. |
|
03-13-2018, 12:19 AM | #4 | |
Senior Member
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 29,866
Thanks: 28,787
Thanked 31,813 Times in 16,424 Posts
Mentioned: 708 Post(s)
Tagged: 2 Thread(s)
|
Quote:
However, the idler pulley could be bad. If you loosen it up, does it spin free and doesn't wobble ..?? Can you get rod to touch the compressor (with your ear next to the other end) to see of the sound is coming from the locked compressor .. ?? Have you checked to make sure the compressor is bolted on tight ..?? It could be that the clutch on the compressor is damaged and making the compressor unit rattle when it engages. I'll ring up ol @Ultramaroon ...... for an opinion.....he has good ears ..... Stay tuned. humfrz |
|
03-13-2018, 12:24 AM | #5 | |
Member
Join Date: Mar 2018
Drives: 2013 BRZ
Location: Chino
Posts: 15
Thanks: 2
Thanked 9 Times in 3 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Quote:
|
|
03-13-2018, 12:36 AM | #6 |
Senior Member
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 29,866
Thanks: 28,787
Thanked 31,813 Times in 16,424 Posts
Mentioned: 708 Post(s)
Tagged: 2 Thread(s)
|
|
03-13-2018, 01:03 AM | #7 | |
Member
Join Date: Mar 2018
Drives: 2013 BRZ
Location: Chino
Posts: 15
Thanks: 2
Thanked 9 Times in 3 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Quote:
I think it might have something to do with the idler pulley? |
|
03-13-2018, 01:37 AM | #8 | |
Senior Member
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 29,866
Thanks: 28,787
Thanked 31,813 Times in 16,424 Posts
Mentioned: 708 Post(s)
Tagged: 2 Thread(s)
|
Quote:
If you suspect the idler pulley, I'd suggest you loosen the belt and see if the pulley spins freely and doesn't wobble on the shaft. @Ultramaroon is LATE to this party ..... humfrz |
|
The Following User Says Thank You to humfrz For This Useful Post: | Ultramaroon (03-13-2018) |
03-13-2018, 02:20 AM | #9 |
義理チョコ
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,861
Thanks: 52,114
Thanked 36,510 Times in 18,915 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
|
It's just the gearbox. All the gears rotate whenever the input shaft spins. When the engine spins slowly, the firing pulses cause the gears to rattle a little.
The AC increases the load on the engine at idle so you get more of the rattle. Normal.
__________________
|
03-13-2018, 02:26 AM | #10 | |
義理チョコ
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,861
Thanks: 52,114
Thanked 36,510 Times in 18,915 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
|
Quote:
__________________
|
|
03-13-2018, 08:19 AM | #11 |
Senior Member
Join Date: Jun 2014
Drives: frs
Location: Gunsai
Posts: 4,876
Thanks: 7,141
Thanked 2,921 Times in 1,768 Posts
Mentioned: 23 Post(s)
Tagged: 2 Thread(s)
|
And when you press the clutch all the way down the noise disappears?
|
03-13-2018, 12:22 PM | #12 |
義理チョコ
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,861
Thanks: 52,114
Thanked 36,510 Times in 18,915 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
|
Yup. Ever heard it? It's more obvious when it's really cold.
__________________
|
The Following User Says Thank You to Ultramaroon For This Useful Post: | Teseo (03-13-2018) |
03-13-2018, 01:31 PM | #13 |
Senior Member
Join Date: Jun 2014
Drives: frs
Location: Gunsai
Posts: 4,876
Thanks: 7,141
Thanked 2,921 Times in 1,768 Posts
Mentioned: 23 Post(s)
Tagged: 2 Thread(s)
|
|
The Following User Says Thank You to Teseo For This Useful Post: | Ultramaroon (03-13-2018) |
03-14-2018, 01:40 PM | #14 |
Member
Join Date: Mar 2018
Drives: 2013 BRZ
Location: Chino
Posts: 15
Thanks: 2
Thanked 9 Times in 3 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Thanks for all the responses guys. Still getting used to the small quirks of the car.
Reminds me of my MR2 where I used to hear all the clicks, clunks, and squeeks of it all around. |
|
|
Thread Tools | Search this Thread |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Kartboy rattle? | Venator | Engine, Exhaust, Transmission | 37 | 09-14-2014 05:53 PM |
Anyone else's 6MT a rattle box at low RPM? | Silver Ignition | Scion FR-S / Toyota 86 GT86 General Forum | 81 | 05-29-2014 11:56 PM |
Rattle above 5k rpm | trippinbillies40 | Issues | Warranty | Recalls / TSB | 1 | 05-28-2014 02:55 PM |
AC Rattle | AVodka14 | Issues | Warranty | Recalls / TSB | 8 | 05-21-2014 12:08 PM |
A/C Rattle? | djliquidsteele | Scion FR-S / Toyota 86 GT86 General Forum | 2 | 06-17-2012 07:46 PM |