V6 engine idling sound - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

jackka · 08-07-2010, 08:12 AM

Is it normal for their to be a "chirp chirp chirp" sound(about 1 sec intervals) when idling in the V6?

It's not loud enough to sound like a real problem, but just annoys me since it's a constant reminder that the engine sound is not smooth and nice.

Nutbutt · 08-07-2010, 08:26 AM

No chirp chirp here ? Just a nice gurgle from the Solo exhaust. Might want to have it checked out.

tradosaurus · 08-07-2010, 08:27 AM

oil the hamster wheel in the engine bay. You should be good to go after that.

Amenti · 08-07-2010, 09:18 AM

If it's a "click click click"-ing sound at just under 1 second intervals, it's just the fuel injectors. They make a lot of noise due to the high fuel pressure in the Direct Injection engine. On start, you'll hear rapid clicking right before it goes into low-idle. At very low parking-lot-speeds, you'll hear the injectors click quickly as you barely accelerate, then settle down to 1-sec intervals again as you return to idle and coast. You don't hear them at speeds above roughly 15 mph.

I totally asked my dealer about that one after making some careful observations. You can even hear the clicking in people's exhaust videos (which I've been watching a lot of, since I am getting an exhaust soon to go with my Injen CAI).

squatin0n18s · 08-07-2010, 10:52 AM

Mine does it too!

jackka · 08-08-2010, 12:22 PM

Quote:

Originally Posted by Amenti

If it's a "click click click"-ing sound at just under 1 second intervals, it's just the fuel injectors. They make a lot of noise due to the high fuel pressure in the Direct Injection engine. On start, you'll hear rapid clicking right before it goes into low-idle. At very low parking-lot-speeds, you'll hear the injectors click quickly as you barely accelerate, then settle down to 1-sec intervals again as you return to idle and coast. You don't hear them at speeds above roughly 15 mph.

I totally asked my dealer about that one after making some careful observations. You can even hear the clicking in people's exhaust videos (which I've been watching a lot of, since I am getting an exhaust soon to go with my Injen CAI).

ah, it was the DI that was the culprit of this, haha. I guess it won't bother me any more now. thanks.

Kitty · 08-08-2010, 12:47 PM

so there's no fix for this chirp then? i heard it on my car this morning too

rays · 08-08-2010, 01:19 PM

Its as Amenti described. Has to do with the ultra lean burn mode where the fuel charge is injected late in the compression stroke under light load conditions.
Its normal.

Kitty · 08-08-2010, 01:38 PM

cool thanks

Sevn86 · 08-08-2010, 03:57 PM

I always thought it was the belts just running around and around...

jackka · 08-08-2010, 05:33 PM

Quote:

Originally Posted by Sevn86

I always thought it was the belts just running around and around...

Yeah that was the guess I got from someone at the dealership when I inquired whether this was normal.

I do feel a lot better knowing that it is from the inherent design of the DI engine that tries to save fuel when idling rather than the belt being out of whack and making wierd noises. Now instead of the clicks bothering me, it serves as a reminder that I have the latest engine technology, lol.

Amenti · 08-08-2010, 11:36 PM

Yeah, I thought it was the belts too, at first. There's actually a GM TSB (Technical Service Bulletin), since so many people ask about the clicking, apparently. I don't know the TSB number offhand.

jackka · 08-08-2010, 11:49 PM

Quote:

Originally Posted by Amenti

Yeah, I thought it was the belts too, at first. There's actually a GM TSB (Technical Service Bulletin), since so many people ask about the clicking, apparently. I don't know the TSB number offhand.

Is there a way we can look at all TSBs regarding the V6 Camaro? They are all probably good info to have as owners of the vehicle, at least the ones I've heard of so far.

Amenti · 08-09-2010, 12:00 AM

Anything like that would probably be in the warranty/recall/TSB forum. I know someone was keeping track of the major TSBs at one point several months ago.

If you search for it, you might find it.

08-07-2010, 08:12 AM	#1
jackka Drives: 2011 Black/Black 2LT/RS M6 w/Sroof Join Date: Jul 2009 Location: FT. Rucker, Alabama, the home of Army Aviation! Posts: 200	V6 engine idling sound Is it normal for their to be a "chirp chirp chirp" sound(about 1 sec intervals) when idling in the V6? It's not loud enough to sound like a real problem, but just annoys me since it's a constant reminder that the engine sound is not smooth and nice.

08-07-2010, 08:26 AM	#2
Nutbutt Drives: 2011 RJT 2LT/RS Convertible Join Date: Nov 2009 Location: Western Massachusetts Posts: 3,381 View My Garage	No chirp chirp here ? Just a nice gurgle from the Solo exhaust. Might want to have it checked out. __________________ 1st IPF Supercharged 2011 2LT/RS RJT Convertible

08-07-2010, 09:18 AM	#4
Amenti Drives: 2017 1SS Convertible Join Date: Feb 2010 Location: San Antonio, TX Posts: 583	If it's a "click click click"-ing sound at just under 1 second intervals, it's just the fuel injectors. They make a lot of noise due to the high fuel pressure in the Direct Injection engine. On start, you'll hear rapid clicking right before it goes into low-idle. At very low parking-lot-speeds, you'll hear the injectors click quickly as you barely accelerate, then settle down to 1-sec intervals again as you return to idle and coast. You don't hear them at speeds above roughly 15 mph. I totally asked my dealer about that one after making some careful observations. You can even hear the clicking in people's exhaust videos (which I've been watching a lot of, since I am getting an exhaust soon to go with my Injen CAI). Last edited by Amenti; 08-07-2010 at 09:24 AM. Reason: revise information

08-08-2010, 12:47 PM	#7
Kitty Drives: Black on Black M6 RS Join Date: Jul 2010 Location: Northern Alberta Posts: 367	so there's no fix for this chirp then? i heard it on my car this morning too __________________ welcome to alberta we eat cow, drill oil and rope calves wants to push you down a flight of stairs to see if you are like a slinky or if you bounce like a ball... either way, I am quite sure I will be amused

08-08-2010, 01:19 PM	#8
rays V6 - It just isn't normal Drives: 2010 2LT M6, F250 7.3L Diesel Join Date: May 2009 Location: NH Posts: 266 View My Garage	Its as Amenti described. Has to do with the ultra lean burn mode where the fuel charge is injected late in the compression stroke under light load conditions. Its normal. __________________ 2LT RS M6 RJT Black leather 4/29/2009 Ordered 6/24 6000 Delivered Last edited by rays; 08-08-2010 at 01:55 PM.

08-07-2010, 08:27 AM	#3
tradosaurus Account Suspended Drives: 2010 F150 Lariat, Candy Red Join Date: Aug 2009 Location: Texas Posts: 1,279	oil the hamster wheel in the engine bay. You should be good to go after that.

08-07-2010, 10:52 AM	#5
squatin0n18s Drives: 2011 RJT 2LT/RS A6 Camaro Join Date: Feb 2010 Location: savannah Posts: 248	Mine does it too!

08-08-2010, 01:38 PM	#9
Kitty Drives: Black on Black M6 RS Join Date: Jul 2010 Location: Northern Alberta Posts: 367	cool thanks __________________ welcome to alberta we eat cow, drill oil and rope calves wants to push you down a flight of stairs to see if you are like a slinky or if you bounce like a ball... either way, I am quite sure I will be amused

08-08-2010, 11:36 PM	#12
Amenti Drives: 2017 1SS Convertible Join Date: Feb 2010 Location: San Antonio, TX Posts: 583	Yeah, I thought it was the belts too, at first. There's actually a GM TSB (Technical Service Bulletin), since so many people ask about the clicking, apparently. I don't know the TSB number offhand.

08-09-2010, 12:00 AM	#14
Amenti Drives: 2017 1SS Convertible Join Date: Feb 2010 Location: San Antonio, TX Posts: 583	Anything like that would probably be in the warranty/recall/TSB forum. I know someone was keeping track of the major TSBs at one point several months ago. If you search for it, you might find it.

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