Faint Honking sound

[aagun]

just try change clutch oil

[SpidyJ]

Originally Posted by aagun

just try change clutch oil

Hmmm......has it worked for you?

[aagun]

Originally Posted by SpidyJ

Hmmm......has it worked for you?

i don't know maybe it help if the sound came from master cylinder .i replace the clutch bearing (bearing locked and fully burned ) and clutch disc (plastic locks for clutch disc springs melted and released the springs )at 80k km and i change oil clutch every 30k km , now it is at 115k km . i heard many sound from my clutch and i ignore it all until it shown any issues.

as i known the clutch system had 18 kind of issues that hard to detected until the parts fault

[Astroboy]

Lol, that sound in the video tho.

[SpidyJ]

Originally Posted by Monogram

This has already been diagnosed and solved by Toyota. It's the accumulator in the clutch master cylinder.

I have an appointment on Thursday with the regional technician guy. The local service manager says the acccumulator in the clutch master cylinder is not the problem.
I hope this doesn't turn into a parts changing fiasco.

[ChrisTheMan]

I'm not sure if you guys have figured it out yet or not but my car was doing that too for me almost every time I shifted with moderate acceleration from 1st to second and second to third. I checked my oil and saw it was low and put in some synthetic 0w-20 and haven't heard the noise since. Cant guarantee it will work for you but that was my fix!

[SpidyJ]

Originally Posted by ChrisTheMan

I'm not sure if you guys have figured it out yet or not but my car was doing that too for me almost every time I shifted with moderate acceleration from 1st to second and second to third. I checked my oil and saw it was low and put in some synthetic 0w-20 and haven't heard the noise since. Cant guarantee it will work for you but that was my fix!

Motor Oil?
Tranny Oil?
Hyrdraulic fluid for the clutch?

[SpidyJ]

Originally Posted by SpidyJ

I have an appointment on Thursday with the regional technician guy. The local service manager says the acccumulator in the clutch master cylinder is not the problem.
I hope this doesn't turn into a parts changing fiasco.

So they told me they diagnosed it with an electronic stethoscope, and the noise is coming from the Clutch Master.....just like Monogram said.
Part on order.

Wonder if they modified the part so the noise won't come back........

[SpidyJ]

Clutch Master replaced and noise is gone........seems to shift smoother but may be my magination........Toyota woont let me keep the old part. Hope the new one doesn't start honking too after 7k mi.

[Jond63]

Originally Posted by SpidyJ

Clutch Master replaced and noise is gone........seems to shift smoother but may be my magination........Toyota woont let me keep the old part. Hope the new one doesn't start honking too after 7k mi.

Dang, I guess I should bring mine in -- this noise drives me way more nuts than the crickets even!

[Monogram]

The honk never came back in mine; The crickets, however, that's another story.

[slayv]

I have noticed this same sound but I have also managed to investigate how it comes.

If I press clutch and still have some throttle pressed this sound come.

I dont get this sound anymore because I practiced to free throttle pedal before pressing the clutch

[Fastbrew]

I heard some of this but it turned out to be people honking at me.

[timfacchin]

Hi guys, just wanted to give a VERY long-term follow-up on this in the hopes it may help somebody else. Many thanks to all but especially Monogram for all of his (accurate) assistance.

I took my BRZ in for some warranty work at the end of last winter, one of those issues was this honking noise. Wouldn't you know it, as soon as I brought it in the honking stopped. Turns out, the honking noise is VERY temperature (and possibly humidity) sensitive. I happened to bring the car in on a random 70 degree day. No dice. Got the car back and sure enough, it was mostly gone.

Well, it's winter again here in NY and almost as soon as the temperate entered the 40s the old honk came back. It seems to be at it's loudest between 30* and 45* but I haven't quite nailed down a pattern.

Anyway, I waited for a nice cold patch and brought it in. It took some convincing to have them try the master cylinder on the clutch but they did the work and that fixed my issue. I've had several days since in the bad temperature range and all's been silent. Love it.

Also had them tackle the crickets while it was in...new high-pressure fuel pump and now I don't know what to do with all of the silence. I'm going to need a better stereo.

Thanks again to everyone for all of your help!