SaiBeeC6

I have a 2006 C6 LS2 motor with 50k 6 SPEED

Recently this sound coming from the engine.(whining, creaking)

http://www.youtube.com/watch?v=JLowo...ature=youtu.be

Anybody know what should i do first?

NO CHECK ENGINE LIGHT, engine run strong.

TNTC4VETTE

Sounds like the balancer's going out and you have an exhaust leak.

pit-man

I presume u know it isn't the belt chirping ? You can squirt a litttle shot or two of wd-40 on the underside of the belt to check. It would stop making noise for a little while.

SaiBeeC6

Thank you for the fast response!

But the balancer was change 5000 miles ago because it was wobbling.....

I also tried spraying some wd-40 on the underside of the belt but the sound is still there.... did not even go away

What else you guys think it is?

Can it be the lifters? camshaft?

Or is there anyway i can check if the balancer going out?

txvettefan

Remove your belt(s) and start your engine. By doing so you will have isolated the engine from the accessories.

cryoman07

New to vettes. But when a spun a cam bearing in the stang sounds similar

jimmyb496

Start here to rule some possibilities out.

SaiBeeC6

Removed both belts, Start the engine. the sound is still there.

Can it really be my lifters? or camshaft? or what else should i try?

any answer is very appreciated, thank you

txvettefan

Please do not shoot the messenger:

I strong suspect that you've incured a classic LS2 Oil Pump Failure and SMOKED THE CAM BEARINGS!

The exact thing happened to me in my 06 GTO.

txvettefan

Your really need to pull the engine, because your rod and main bearing get priority oiling and I strongly suspect that you may have a bad rod bearing(s).

All is not lost: the rods can be resized, ARP 2000 series rods bolts, regrind the crank, & balance the rotating assembly or

HAVE A MYSTERIOUS FUEL PRESSURE LEAK >>>>>STARTS A FIRE>>>>>>>>>>CALL ALLSTATE!!!!

It is not the end of the world!!!

Educ6

Hello
I write from Spain,

I just like the sound, I have the same problem in 2007 LS2 vette

thanks

Educ6

Hello
I write from Spain,

as I finish?, I have the same problem in 2007 LS2 vette

Thanks for your help

subfloor@centurytrans

Unfortunately you've almost certainly got a lifter stuck in one of the lifter bores. The same thing happened to me a few years ago:



The good news is that you might not to need to tear down the entire engine to fix it. In my case, what happened was the little pin holding the roller in the lifter started moving sideways which restricted it's movement in the bore. The roller got flattened but the cam itself was still fine. Getting the lifter out was quite a challenge however but still doable.

Educ6

hello! Thanks for your support! I do not understand English I use google translator. Live in Spain

Is this what you get stuck??

thank you very much

SaiBeeC6

Yes it was my lifters, changed out my lifters and sound was gone.

C6Rdstr

Possibly a bad A/C condenser bearing. My 05 C6 6MT had this noise problem and had the dealer replace my condenser and noise went away.

subfloor@centurytrans

A condenser has no moving parts.

tennblkc6

wow...hope you at least got a reach around with that repair.

C6Rdstr

I'm sorry, I meant A/C compressor.

majorpayne317641

Do you rev or drive aggressive? Any mods done to the car? Does is start slower than normal or studder before starting at times? Pull the timing cover and check the bolts on the cam sprocket, I had all 3 back out, one was grinding on the cover and broke off, I did have the cam position error code after a few starts.