"chattering" noise coming from passengers side of engine compartment - any suggestions?

[NocturnalEmber]

2023 3.0 Premium 6MT.

I've noticed that when the car is idling, you can hear what sounds like a chattering noise coming from the passengers side of the engine bay. The best thing I can think to describe it as being similar to is the sound of an upgraded clutch that chatters in neutral.

Pushing the clutch pedal in doesn't seem to make any difference, and my car is 100% stock. Just curious as to if anyone has had this happen before? It's been doing it for awhile and I might just make an appointment at the dealer to bring it in, but I'd rather probe the forums first.

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[jtsang25]

Sounds clips would help

 

[razorlab]

Normal, there was literally a thread about this the other day and every month before that…

 

[NocturnalEmber]

Normal, there was literally a thread about this the other day and every month before that…

I must have used the wrong keywords, but even generic ones such as "chatter" "chattering" and "noise" didn't show anything within the past day, and back a few months the results returned weren't really relevant.

Sounds clips would help

I've uploaded a video; Car is in neutral (6MT). AC off or on doesn't have any change to the sound, and pushing the clutch in doesn't either. You may have to turn the volume up to hear it well enough. I heard it on my headphones just fine but on my speaker it was hard to pinpoint, it resembles a chattering clutch or some kind of rattling, though.

Edit: website video uploader seems to be broken, had to go third party:

 

[jtsang25]

Unless my phone is broken. That sounds like every other Supra.

 

[zrk]

It’s the DI injectors injecting

 

[NocturnalEmber]

I've owned a few DI cars in the past and they've never made a chattering noise. Sure, audible, but nothing that sounds like that. There's the obvious noise that sounds like the engine running and injectors firing, but it might require turning your volume up or using headphones to hear the noise I'm talking about like I mentioned. It's a very mechanical chatter.

Could it be the direct injectors? I suppose so, but it sounds way too mechanical, and I've been wrenching on cars for quite awhile.

 

[XtremeMaC]

Do you have an AT owner nearby ? Maybe find one and compare noises sbs.

 

[NocturnalEmber]

Do you have an AT owner nearby ? Maybe find one and compare noises sbs.

Unfortunately not that I know. Might just book an appointment at the dealer if I turn up without any leads here.

 

[jtsang25]

Unfortunately not that I know. Might just book an appointment at the dealer if I turn up without any leads here.

Just book the appointment. Bunch of people have said it's normal. Now you're just seaking responses to validate what you already think is an issue.

 

[Supra_UK_]

Can I ask please while we're on this topic so I don't open a new thread:

Can someone explain why the engine sound idling changes ever so slightly, (you can also feel the change in vibration in the cabin it very subtly) when you put the clutch in whilst in neutral?

No other manual car I drove does this, is it something to do with the software for the rev matching?

To be clear, this isn't an issue, it feels like that's how the car is designed to work but I'm curious to understand the mechanical reason(s) why.

 

[J29DB03]

Can I ask please while we're on this topic so I don't open a new thread:

Can someone explain why the engine sound idling changes ever so slightly, (you can also feel the change in vibration in the cabin it very subtly) when you put the clutch in whilst in neutral?

No other manual car I drove does this, is it something to do with the software for the rev matching?

To be clear, this isn't an issue, it feels like that's how the car is designed to work but I'm curious to understand the mechanical reason(s) why.

That likely has to do with the “anti-stall” in the engine management. Don’t have a manual but willing to bet if you release the clutch slowly enough without giving it gas it’ll prevent itself from stalling. My 500 Abarth was like that.

 

[calmeda1]

Sounds exactly like mine and other friend's Supras. Been doing that sound since day one, and I'm at 15K miles.

Edit: would be nice if mods can make a "new supra owners" tab so that new users can see all the things that normal

 

[razorlab]

I might just make an appointment at the dealer to bring it in, but I'd rather probe the forums first.

Translation = I already have my mind made up to go to the dealer to have them tell me the same exact thing everyone here is saying but I am ignoring, even though I asked for opinions.

 

[XtremeMaC]

Translation = I already have my mind made up to go to the dealer to have them tell me the same exact thing everyone here is saying but I am ignoring, even though I asked for opinions.

+
Owners know more about the car than the "I get a Supra to my dealer/service once a year" techs.. So I don't think service will be of help other than to have a knee jerk reaction of saying "it's normal"..

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