High pitched chirping when AC on?? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Spectral Entity · 02-23-2018, 03:46 PM

I've developed a mildly annoying sound in my car that is apparently not crickets, and while the Toyota dealer couldn't hear it, I certainly can.

It literally sounds like a cricket chirping nonstop but it's only when I have my AC on, and most noticeable on fan setting 2.

Could there be some debris in the blower motor? If so, how would I go about checking it out?

Thanks in advance.

nico_rsx · 02-23-2018, 04:02 PM

When you mean AC, you are talking about the compressor right?
What happens if the AC if off and the fan at speed 2? If there is no noise, then it's not the blower motor.
If the noise is still there, then there is a good chance it's the blower motor. Bearing maybe.

If the noise is only there when the compressor is running, then it has nothing to do with the blower motor. Check if the noise is coming fom the accesories belt.

guybo · 02-23-2018, 04:14 PM

Check your cabin air filter too. Also open the hood when it's doing it and listen around to where it's coming from

Spectral Entity · 02-23-2018, 05:02 PM

Changed the cabin filter last week but glad for the suggestion as I found some dead ants up in there (wtf?!) and tapped them all out on the ground.

I seemed to have isolated the noise to the round thing plugged in under the glove box. I turned the AC compressor off and still heard the noise from this area, as well.

Is said round thing the blower motor?

humfrz · 02-24-2018, 12:41 AM

Quote:

Originally Posted by Spectral Entity

Changed the cabin filter last week but glad for the suggestion as I found some dead ants up in there (wtf?!) and tapped them all out on the ground.

I seemed to have isolated the noise to the round thing plugged in under the glove box. I turned the AC compressor off and still heard the noise from this area, as well.

Is said round thing the blower motor?

Most likely. I'd suggest you take it off and have a look see .....

humfrz

Tcoat · 02-24-2018, 02:01 AM

Quote:

Originally Posted by Spectral Entity

Changed the cabin filter last week but glad for the suggestion as I found some dead ants up in there (wtf?!) and tapped them all out on the ground.

I seemed to have isolated the noise to the round thing plugged in under the glove box. I turned the AC compressor off and still heard the noise from this area, as well.

Is said round thing the blower motor?

Yes it is the blower. Take a look at the last couple of posts here - http://www.ft86club.com/forums/showt...t=97411&page=2

FRSBRZGT86FAN · 02-26-2018, 09:17 PM

Quote:

Originally Posted by Tcoat

Yes it is the blower. Take a look at the last couple of posts here - http://www.ft86club.com/forums/showt...t=97411&page=2

Quote:

Originally Posted by Spectral Entity

Changed the cabin filter last week but glad for the suggestion as I found some dead ants up in there (wtf?!) and tapped them all out on the ground.

I seemed to have isolated the noise to the round thing plugged in under the glove box. I turned the AC compressor off and still heard the noise from this area, as well.

Is said round thing the blower motor?

The ant's and other debris may be within the motor now and may have effected the motor. If you still have a warranty it's best to have it replaced, if not do the wd40 trick.

hichamaziz · 03-02-2018, 04:49 PM

you are talking about the compressor right?

Sniepster · 01-29-2021, 05:50 AM

My blower motor makes the same noise, will try the WD-40 trick whenever i have time. '13 GT86 with 69k miles on

02-23-2018, 03:46 PM	#1
Spectral Entity Member Join Date: Oct 2014 Drives: 16 Scion FR-S Hot Lava, 81 DeLorean Location: Huntsville, Alabama Posts: 80 Thanks: 92 Thanked 55 Times in 27 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	High pitched chirping when AC on?? I've developed a mildly annoying sound in my car that is apparently not crickets, and while the Toyota dealer couldn't hear it, I certainly can. It literally sounds like a cricket chirping nonstop but it's only when I have my AC on, and most noticeable on fan setting 2. Could there be some debris in the blower motor? If so, how would I go about checking it out? Thanks in advance.

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02-23-2018, 04:02 PM	#2
nico_rsx Senior Member Join Date: May 2016 Drives: BRZ 2017 Pure Red, MT Location: Quebec, Canada Posts: 309 Thanks: 122 Thanked 121 Times in 83 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	When you mean AC, you are talking about the compressor right? What happens if the AC if off and the fan at speed 2? If there is no noise, then it's not the blower motor. If the noise is still there, then there is a good chance it's the blower motor. Bearing maybe. If the noise is only there when the compressor is running, then it has nothing to do with the blower motor. Check if the noise is coming fom the accesories belt.

02-23-2018, 04:14 PM	#3
guybo Huge E85 fan! Join Date: May 2016 Drives: 2016 Scion FRS Location: Tampa, FL, USA Posts: 1,850 Thanks: 539 Thanked 1,010 Times in 605 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	Check your cabin air filter too. Also open the hood when it's doing it and listen around to where it's coming from

02-23-2018, 05:02 PM	#4
Spectral Entity Member Join Date: Oct 2014 Drives: 16 Scion FR-S Hot Lava, 81 DeLorean Location: Huntsville, Alabama Posts: 80 Thanks: 92 Thanked 55 Times in 27 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Changed the cabin filter last week but glad for the suggestion as I found some dead ants up in there (wtf?!) and tapped them all out on the ground. I seemed to have isolated the noise to the round thing plugged in under the glove box. I turned the AC compressor off and still heard the noise from this area, as well. Is said round thing the blower motor?

03-02-2018, 04:49 PM	#8
hichamaziz Member Join Date: Feb 2018 Drives: subaru brz Location: casa Posts: 20 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	you are talking about the compressor right?

01-29-2021, 05:50 AM	#9
Sniepster Member Join Date: Nov 2020 Drives: 2013 Toyota 86 Location: Bucharest, Romania Posts: 62 Thanks: 8 Thanked 17 Times in 13 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	My blower motor makes the same noise, will try the WD-40 trick whenever i have time. '13 GT86 with 69k miles on

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