I have a rattling noise coming from my engine by either the timing belt or supercharger serpentine belt. Its loudest at 2krpm. Anyone else with similar noise?

IMG 0007 - YouTube

 

i think ive heard this before. the supercharger sounds like there are marbles inside but the person that had the issue said the car still ran great and it caused no issues. idk if it is that but it sounds like it

 

Ya thats a perfect description! I have no performance problems what so ever but I know my car didnt make this sound a week ago :/

 

Snout bearings maybe?

 

lets see if the guy that had that noise comes in here. his sig is a pic of his blue cobalt, a red camaro and a vette that i forget the color of. he's on pretty often and i think i just saw a comment he left a little while ago. so he'll probably see this. ill see if i can find his name so u can pm him

 

k. his name is 07metallicSC. shoot him a pm and ask him to watch that video and see if thats the same noise he has. im like 90% sure that he was the guy that had that noise.. i hope iim right ha

 

Is the snout bearing near where the noise is? Ive never heard of a snout bearing

cool, thx bro

 

Its the sc coupler. U need to get one from zzp its 3o dollars and also get the sc oil and removal kit with rv gasket

 

WOW! i hope that u just gave me the solution to the problem ive been praying to god doesnt happen to me.

i hope 07metallicSC gets in here and tells us thats wat he replaced and issue all gone so i can gave this little bit of knowledge in the back of my mind

 

Im new to the supercharger world. How hard is it to replace?

 

i dont think its too bad. i havent done it tho so cant tell ya first hand.

 

Its not bad man, according to all ppl that have had the problem. The coupler just loosens up as the holes stretch up and create the rattle sound... I told the same thing to 07metallicSC
I have a kit in my closet in case I get the problem lol

 

I just watched a few vids on "bad cobalt supercharger couplers" and they dont sound anything like the noise im hearing. The coupler vids sound more like clanking not a bunch of bearings rolling.

 

I would take it to GM if u have ur own coupler kit.... I got quoted 100 dollars if I took my coupler n oil but mine ended up being a bad downpipe which created the same sound

 

shiiiiit. Ive only had the car for a month and already gonna start tearin her down! haha

 

well the only reason i even mentioned it was because 07metallicSC explained his noise as... it sounds like there are marbles bouncing around in the SC... and to me the video sounds like marbles clanking around haha. i hope its the coupler, for OP's sake. they're only like 40$ arent they?

edit: not even 40$. just checked. they're 15$ for oem, and 30$ for zzp's "green" coupler. so ya. again i hope thats the OP's problem. nice and cheap

 

I was just about to cancel my warranty tomorrow too. I might hold onto it for a bit longer.

 

Well maybe it is ur bearings my friend but the sc coupler is more common

 

Appreciate it man. Thanks for info!

 

Does the timing chain tensioner sound similar when it goes bad?

 

Take it to gm to get it diagnosed. They found my issue quick, and like I told u, it ended up being my downpipe lol and dp is covered evev if u don't have warranty and have less than 130k mi

 

Yes it does sound similar and all of our tensioners will go bad sometime.. I believe mine just went out and I was gonna replace it today but stripped some bolts and couldt get anywhere lol

 

Gonna take it in tomorrow! Ill let ya know what they say

 

ehhhh.... when the tensioner goes bad its more of a ticking. the noise in the video sounds much more... odd i guess u could say. im putting money on the coupler.

The downpipes i BELIEVE are a recall. The stock cat goes bad. i think.

my opinion.. i dont think its related to exhaust, and i definitely think its the same issue 07metallicSC had. so watever he did to fix it, i would follow. and i would definitely talk to him as i said. Not saying im right but thats my opinion.

I WISH SOME OTHER PEOPLE ON THIS SITE WOULD JUMP IN HERE TO HELP THE OP. ha idk wat happened to this site. i havent been on in like 5 months and now its like, dead

AND BTW. if u wanna take it to the dealer then go for it dude. they probably have a close to 100$ diagnostics fee just to check the car out. and watever they find they'll try to sell u on getting it done there. but they'll tell u there expert opinion on what they think it is. so always a good choice if u have the 100 or so dollars

 

I just wish i knew what the person did to it before me. I know he didnt go stage 2 or anything but he put an Injen intake in. Ive read some horror stories about warranties going bad here and it makes me concerned that if I have an aftermarket CAI that it would void the warranty which is complete BS if you ask me.

I guess paying $100 to find the problem is better than started to buy parts and guessing what it might be. I just dont know enough about my car yet to say for sure what it is.