Odd noise on take-off (squeak/chirp?)

[PieEyedPiper]

Whenever I take off with a little "oomph" I can hear an audible chirp or squeak that I imagine is coming from the drivetrain. It chirps or squeels as soon as I let out the clutch and as soon as everything in engaged and the car is rolling the squeel/chirp vanishes. It seems to be load dependant.
Does anyone know what this could be?

 

[Tarascan79]

Your tires!

 

[PieEyedPiper]

Good one, but I think thats quite unlikely. I'm not talking about THAT much oomph, nor have I ever broken my wheels loose so I doubt that at my power level is it even possible just from leaving a stop sign or starting on a hill.

But maybe it is the tires and there is some underlying drivetrain issue causing this?

 

[DGajre777]

That happens all the time with my car, on mine at least I know it has to do with the 6 puck disc on my ACT2100.

 

[JayRolla]

I was about to say its your clutch and its normal. Is it upgraded at all? My brothers act 2600 also does this. Ive also heard of the stock clutch making this noise but its very faint.

 

[niles]

I had the same squeaking noise, as soon as the engine just starts to rev up in reaction of nearly 100% throttle.
This happened not very often but regularly. I'm not 100% convinced it's gone, but I haven't heard it again since I replaced all my auxiliary belts.

 

[Tarascan79]

What rpm are you letting the clutch go. If you got a good clutch i would think it would grab the tranny good enough to make your tires squeek if you give it enough power.Or if your tires are starting to go maybee ?

 

[DGajre777]

Don't forget that having a good suspension plants power to the ground. I didn't notice the squeaks until I went to Tokico Illuminas and Eibach Pro on the stiffest level.

 

[STiModder]

Speaking of suspension are you sure it's not your suspension settling? Sway bar bushings, struts, etc.

 

[voodoogsx]

Do you hear the chirp when you just gas it at a standstill? is it a metal against metal chirp?
Just curious, cause I had a small chirp, metal against metal type,...turned out my turbo compressor blades were rubbing against the housing when I hit the gas.....just a thought....

 

[90gsx16g]

Could be the T.O bearing, mine sqeaks lik a mother-fuc*er when your pushin the clutch in and the pressure plate is f-d too ( its like a sqeaky combo) but it goes away with the clutch out. But thats because mine need to be replaced. When was your clutch replaced last?

 

[DGajre777]

I'm sure its the shocks/springs combo - I run 5s on all 4 corners.

 

[rhino4]

Okay i never had this problem until 2nite AFTER i read this forum. I get into my car drive around for a little bit and all the sudden squeaking on takeoffs. I turned the car off and when i got back into it it was squeaking again but then the car warmed up and it was fine. you jyxed me

 

[PieEyedPiper]

That happens all the time with my car, on mine at least I know it has to do with the 6 puck disc on my ACT2100.

I've often suspected it was the clutch, but it only started happening last spring and as time goes on, more and more.

I was about to say its your clutch and its normal. Is it upgraded at all? My brothers act 2600 also does this. Ive also heard of the stock clutch making this noise but its very faint.

Spec Stage 2+ (full face kevlar/6puck hybrid). So this clutch thing is starting to look more feasible and is calming my nerves as you guys are seeming to indicate this is normal behavior of an aggressive clutch. But why did it just start this year and is progressively getting worse?

I had the same squeaking noise, as soon as the engine just starts to rev up in reaction of nearly 100% throttle.
This happened not very often but regularly. I'm not 100% convinced it's gone, but I haven't heard it again since I replaced all my auxiliary belts.

I've been considering replacing some belts but it just doesn't seem like it would be a belt. Maybe I'll go around tightening them and see if there is an improvement. Thanks!

What rpm are you letting the clutch go. If you got a good clutch i would think it would grab the tranny good enough to make your tires squeek if you give it enough power. Or if your tires are starting to go maybe ?

I think AWD with stock turbo is unlikely to break 'em loose under normal conditions. But to answer your questions, the tires have good life still and I don't usually have to slip the clutch at anything higher than 2100rpm, usually around 1800 for the smoothest results. My clutch grabs like a mofo.

Don't forget that having a good suspension plants power to the ground. I didn't notice the squeaks until I went to Tokico Illuminas and Eibach Pro on the stiffest level.

I have the exact same suspension setup. I installed them sometime in February I think and the sound materialized shortly thereafter, probably within the same month. I also filled my motor mounts with Windo-Weld around this timeframe. I'm starting to see a pattern.

Speaking of suspension are you sure it's not your suspension settling? Sway bar bushings, struts, etc.

I don't think it is, the sound is much too long and drawn out to be of my bushings/springsshocks/mounts. It is definitely rotating, whatever is causing this sound.

Do you hear the chirp when you just gas it at a standstill? is it a metal against metal chirp?
Just curious, cause I had a small chirp, metal against metal type,...turned out my turbo compressor blades were rubbing against the housing when I hit the gas.....just a thought....

Good Idea, but no I don't experience that problem. My compressor has zero shaft play and the sound is only when starting to move.

Could be the T.O bearing, mine sqeaks lik a mother-fuc*er when your pushin the clutch in and the pressure plate is f-d too ( its like a sqeaky combo) but it goes away with the clutch out. But thats because mine need to be replaced. When was your clutch replaced last?

I've had a bad TOB before I replaced my clutch with the Spec unit in late 2005/early 2006. This is not the same. But I do question my pressure plate/disc/flywheel as a squeaky combo. I suspect my flywheel was cut with runout because of the horrible disengagement and the hellacious grab it has.

I'm sure its the shocks/springs combo - I run 5s on all 4 corners.

I run softer settings of 2 in the front and 3 in the rear because it gets too bouncy on the 30min highway commute to the college in the mornings. But nonetheless, it is still much stiff than stock. I think it is a combination of my clutch, the flywheel runout, filled mounts and my suspension setup.

I just have to cross out belts to be sure.

Okay i never had this problem until 2nite AFTER i read this forum. I get into my car drive around for a little bit and all the sudden squeaking on takeoffs. I turned the car off and when i got back into it it was squeaking again but then the car warmed up and it was fine. you jyxed me

Heh, sorry mate!
If it helps the car was driving wonderfully tonight, maybe you'll experience the same?

 

[DGajre777]

It is a known fact that puck discs or any type of non-organic street discs are more aggressive. Combine that with good shocks and springs that don't compress on a launch and some solid motor mounts and you have the same thing that I do.

As I said, I have a combo similar to yours, but here is the entire list - ACT 2100 w/ 6 puck sprung hub disc and an ACT flywheel, Tokico Illuminas with Eibach Pro on 5s, all new spring/shock parts and Energy Suspension lower motor mount inserts. Personally, I wouldn't worry about it. I've noticed that if I slip the clutch slowly the chirp goes away, but its kinda hard to do that since I don't have a full face disc. You can also try running low air pressure in your tires and see if it makes a difference, it didn't on my car.

 

[90gsx16g]

Whenever I take off with a little "oomph" I can hear an audible chirp or squeak that I imagine is coming from the drivetrain. It chirps or squeels as soon as I let out the clutch and as soon as everything in engaged and the car is rolling the squeel/chirp vanishes. It seems to be load dependant.
Does anyone know what this could be?

When you say "load dependent" what exactly do you mean? Are rpms dropping with clutch pressed or...?

 

[PieEyedPiper]

When you say "load dependent" what exactly do you mean? Are rpms dropping with clutch pressed or...?

I just meant that the more gas I give it/load applied when engaging in first is more likely to produce the sound.

DGajre777, we're in agreement. We have very similar setups and the sound is probably the clutch.

But there was one important detail I left out. I have one tire in the front thats at barely 3/32". I was curious that since my car sees so much highway time if the difference in rotational count by the end of my trip each day has taken its toll on the drivetrain and this is the result.

But everything in the drivetrain is mechanically locked in place and nothing but the clutch slips, right? So we're back to moving parts (rotating) that move independently of other parts they work in conjunction with.
Thats leaves the clutch and belts.

Thanks for your help everyone,

 

[DGajre777]

But there was one important detail I left out. I have one tire in the front thats at barely 3/32". I was curious that since my car sees so much highway time if the difference in rotational count by the end of my trip each day has taken its toll on the drivetrain and this is the result.

I doubt you running tires with different threads on it has anything to do with the chirp you are getting. I have all 4 new tires and the wear on all 4 is the same, but I get the same chirp that you get.

Did you get an alignment after you had the shocks/springs installed? If you did, did they "sag" over time? and if yes, did you get an alignment done again? It could be the TOE if it wore out real fast.

But everything in the drivetrain is mechanically locked in place and nothing but the clutch slips, right? So we're back to moving parts (rotating) that move independently of other parts they work in conjunction with. Thats leaves the clutch and belts.

Yes, the clutch slips (barely, depending on what clutch that you have) but in an AWD, you also have the center differential and synchros that move. As long as you don't get a synchro 'scrunch' noise when you shift, you are fine. If you make crazy amounts of power, you can break the center differential in an AWD, which is why people upgrade to a 4 spider center diff. or get it welded (cheaper), but if you aren't making 450+ whp, I wouldn't worry about that either.