C5at16

So I started up my car yesterday and it had a weird clacking sound from underneath. It isn't coming from the engine bay so rod nock is out of question.

http://m.youtube.com/watch?v=Ii5BgpF...ature=youtu.be

There is a video of the sound.

I have 521 rwhp and 469tq

Stock drivetrain and motor

Any ideas?

- Anthony

pewter99

I guess you looked under hood and didn't see anything huh? almost sounds like something caught in fan

El original

Sounds like a catalytic converter rattle...bang on cat and listen if it rattles. It is loud enough it should be easy to resolve this problem. Good luck. Rob

C5at16

Wasn't that, just tried it. My left muffler is blowing out though. So I might take off the exhaust from the bottom of the headers to see if it could be that.

Adrians99FRC

Something in the torque tube / drivetrain?

Does it stop if you push the clutch in and put it in gear?

Either that or sounds like something rattling .. Loose exhaust clamp, etc

jcsperson

Definitely sounds exhaust-related.

C5at16

Nope it keeps making the sound with the clutch and when it's in gear. My left muffler started blowing out little flakes not to long ago. I have a supercharger on it with rock cats, could they be blowing out and that's what the rattling from?

Adrians99FRC

ok that eliminates drivetrain noises

sounds like your cats are done

aTeam

Mine makes a similar noise when the clutch is out. When I push the clutch in it goes away. Makes me think it's transmission related. It only happens when the car is warm

C5at16

Throw out bearing? Happened to my brothers 350z.

C5at16

Gonna hollow them out soon thanks for the help.

Adrians99FRC

thats what I'm thinking .. my ford ranger does the same thing

Adrians99FRC

no problem

looked up under mine the other day .. no cats at all .. been wondering why it smells like a old hot rod / rich when im sitting in traffic

mine is supercharged with a full exhaust

C5at16

I have to do some maintenance to mine, that will be next on the list. For the time being hollowing them out