Well ever since i got the car or as far as i can remember from about a year ago when i start the car and its idling i hear a noise coming from the supercharger i think it sounds like something is loose and is spinning and making a clanking noise... with the hood down and from outside and in the car u can hear it its pretty consistant and sounds like something is loose or something in there...sometimes when the car warms up or after like 15 min of running, it will stop and i wont hear it. i was just wondering if anyone could possibly know what this could be. i have an 07 cobalt ss/sc with stage 2 airbox mod and exhaust....thanks

goin to sleep hopefully someone can help me tomorrow...goodnight

 

Completely normal. Go back to sleep.

 

theres no way its completely normal....lol...when i have my car on and im standing around it it sounds horrible it makes my car sound like its a piece , someone awhile back suggested it might be the coupler or something

 

my car does same thing but it more like a rattle and it is the pos heat shield makes the car sound like **** for the first ten mins

 

most, if not all roots blowers sound like they are filled with marbles.

 

i have the same noise. pisses me off especially in the drive through cuz I have the radio off and can really hear it, so I just blip the rpms every few seconds so it will stop for a couple seconds...

 

hmmm so theres nothing we can do about it and it really is normal... and if it is the heat shield cant i do something to make it stop rattling??

 

its not the heat shield. I took mine off awhile back when I put on my headers.

 

o ok so in other words this is normal, and theres nothing i could do about it and jus forget it?? lol

 

....

 

........x2

 

I had a guy in the drive through window ask what was wrong with my car today....

 

Timming chain tensioner , or SC coupler could be on the way out. Hell there are a thousand thing it could be. The top end of these motors are noisey. Take a screwdriver and put it up to ur ear and check exactly where its coming from . I thought my sc was loud , used a screwdriver and it ended up bieing the injectors ticking .

 

did you fix it? if so, how?

 

Mine sounds the same way its most likely the coupler

 

My 07 ss/sc do the samething only when warm and it intermitent.

ist coming from the cam sensor on the left side of the exh. cam. toc toc toc toc....

its weird.

I take it to the dealer, but the problem was not present.

maybe you can check if the noise come from the same place.

 

s/c coupler

COMMON Eaton blower problem

 

if its a problem, can it be corrected?

 

Yes, buy a new coupler from Intense-Racing.com or ZZPeformance.com. One or both should have them in stock. The replacement should last forever.

 

Im having the same "marbles in a tin can" sound, never determined exactly where in the engine it was coming from.

Still under warranty. Dealers cant replicate the sound, of course.

It's not consistant at all. Somtimes it does it from a cold start, but most of the time not until its warm, about 3-5 min. of driving. I'm talkin seriously loud rattle, where random people tell me my car is retarded. Not a good feeling.

It used to do it about once a week. Now its more like once a month... if that. But I havent tried anything to fix it. I'm at 30k miles now btw. The noise was at its worst around 10k-22k. Dont know if it has anything to do with it.... all i know is it isnt as bad now as it used to be.

But none the less... it still exists.

Is this the problem that the SC coupler will fix? Or does it sound timing-chain related?