bucks121

i have a clicking noise when into boost hard just noticed it the other day i went hard on the gass in first and there was a backfire then i noticed it started clicking

it goes away when the car is warmed up so it cant be that bad? but it didnt do it before

anyone have a solution?

07BoostedG5

iTrader: (12)

Sounds like an exhaust leak

SSlobalt

Are you running Ethanol, OP?

bucks121

car is completely stock

SSlobalt

Some have reported a clicking at boost that ended up being a bad injector o-ring. Do you park your car in a garage? Does it smell like fuel if you do?

slowc6

I have the same problem my car has been at the dealer over two weeks and they cant find the problem.

Chevrolet Cust Svc

slowc6 – please let me know what happens at the dealership. If they can’t find a fix, I’d be happy to set up a case with Chevrolet Customer Assistance so they can look into it further.

Thanks,
Laura
Chevrolet Customer Service

Permafried-

Have they actually contacted GM Tech or are they sitting there spinning their wheels? Two weeks is a bit ridiculous, I had my motor torn down, valves replaced, motor re-assembled and back in my hands in a week. Two weeks of no progress shouldn't be acceptable.

slowc6

They said they been in contact with GM trying to find the problem they replaced the belt and put on a brand new turbo but the sound is still there.

slowc6

why were the valves replaced maybe thats my problem.

Permafried-

Here's the link to my symptoms, clicking wasn't one of them except occationally on start-up I would get a horrible "clacking" that was the valvetrain, but it would subside within a few seconds:

https://www.cobaltss.net/forums/08-1...ok-out-256342/

This is probably the absolute last thing I would have them check, though all they need to do is pull the MAP, put a scope into the manifold and check of carbon build-up. Mine was horrendous.

slowc6

My car has been at the dealer now over a month I would like to file a complaint. Can you give me ur contact info.

SaleenFreak

mine used to do that.....untill I put a catless downpipe and did a retune....I don't know if it has to do with heat...but its stop doing it