My car is current at the dealer because I was noticing a loud clicking/rattling sound from the engine both at start up and when it was warm. They say it is the injectors, but need to check with GM to see if the noise is normal. I did a search, but did not come up with a ton.

Any ideas advice if they do say it is normal?

Thanks.

 

yea it was prom the injector,it happened to me when i changed a bad injector

 

are u a lsj or lnf? if lsj when that happened to me i had a crack in my flex pipe on my downpipe... i know a clicking sound like wtf... but it was my flex pipe... for LNF's i thought the clicking was normal from the D.I. right?

 

Normal. The injecotrs are going to click on a DI motor.

 

Sorry, it is an LNF (08 SS/TC), but I have noticed the noise getting louder over the last week or so which is why it concerned me.

 

I can understand that. As parts wear and get more miles on them the noise may increase. This can also happen due to ambient temps.

Personally I'd start to worry if the ticking stopped.