Weird sound, I posted something about it awhile ago, but now I have a video and you can all hear it. Any idea what this is? Like a clacking noise. Just started a few weeks ago.

http://www.youtube.com/watch?v=LDhZpSx6NhA

 

uggghhhh dosent sound perty!!! i heard that the supercharges get a sound like theres marbels in it. maybe its your sc????? pop it off and see what the roters look like. also sounds like its coming near the header. humm i would say take the sc off and report back.

 

It only does it like every other time, and it isnt a constant noise, it goes away after like 2 minutes.

 

I would pull the blower apart and check the rotors and gears.Something is def wrong inside.

 

holy **** man same thing is happening to mines..and it always does it one time after i first turn it on and then it goes away...wtf?

 

We both have the CA header. What spark plugs are you useing?

 

am using NGKs..u think is the header? ive also triyed to follow that noice but it just sounds like its coming from everywhere lol. its defenately not the supercharger mines sounds normal and the noise seems to be coming from like the rear...idk bro.

 

I have no idea.

 

is it the SC making that noise? when the coupler goes I hear it can do that.

 

to be honest i have no idea where the sound comes from...but the cars runs normal except for that sound which is starting to worry me...sometimes i do think it comes from the header tho...

 

how about your downpipe maybe a flex pipe leak or loose bolts

 

ill be looking into that this weekend. i dont think any bolts are loose if so by now it would had fallen apart somehow. but it seems that when the car is cold and starts to warm up is when this happens...once its warmed up it doesnt do it anymore..

 

Does it sound like plastic and chain rubbing or hitting each other?

 

That kind of sounds like the same exact sound that was coming from my '06. Took the dealer 3 different tries for them to firgure it out, after they replaced the idler pulley and bracket. I kept telling them that it was not that. So, finally they really looked into it after I picked it up the last time, drove and then took it right back there. It was my timing tensioner that broke and the timing chain was hitting against the valve cover. Im not sayin that, yours could be the same but that sound is what I was getting.

 

im not sure but i have the same header and i dont have this problem could be supercharger coupler

 

And Ill tell you one thing, I have a stock size pulley on it. And, the thing pulls decent now after the fix. Nothing like my 2.7 tho, I can't wait til I get time to grind down the bracket to put on the oversized idler pulley, to see the difference in that.

 

thanks alot for the input man am also goin to look into this carefully. so to fix it u had to replace the timin chain? and the timing tensioner?

 

Yea man no problem. They just replaced the tensioner.

 

i have a how to for replacing the tensior let me know if ya need it.

 

Post it up. Thanks.

 

That's what I was thinking. Exactly what it sounds like.

 

I dont know anything about them, why would it only make this noise sometimes?

 

it'll be really helpfull man thanks!

 

here ya go man. any questions just ask!
https://www.cobaltss.net/forums/how-guide-43/how-timing-chain-tensioner-203071/

 

sounds like your timing is off. could be the tensioner, get a new one they are cheap and see if it solves anything