Strange knocking noise by middle of tranny engine

**Anayalator408** · 03-16-2010, 01:30 AM

Just got my 02 ss camaro 2 months ago and has strange knocking noise by middle of tranny n motor. Runs great and shifts great.. It rattles when car is mostly warming up and sometimes when driving or at a stop light.. What can this irritating noise be? Would greatly appr. any advice ... Car is Auto with 74k miles

**Spaz** · 03-16-2010, 04:16 AM

welcome to the site... my guess would be a heat shield...

**0rion** · 03-16-2010, 07:06 AM

any mods on the car and can you describe the noise a little better? Is it a knock or rattle and does it sound like somethings hitting the floorboard? Just need a better description to narrow it down.

**Smittro** · 03-16-2010, 08:22 AM

Welcome! Sounds like the noise my cat made on it way out. But your mileage is slightly lower than mine was when the cat died.. But I just guessing..

**jiveass** · 03-16-2010, 09:25 AM

perhaps flywheel? do you know if the tranny has ever been removed? i know this might be a little extreme but i have seen it happen.

**PFM** · 03-16-2010, 09:47 AM

Could still be a cat thats come loose on the inside. More than likely its the exaust rattling. If it was just at warm up I would say piston slap. Need a mystery noise video!

**Anayalator408** · 03-16-2010, 10:31 AM

Thanks for your replies bro's.. Its a rattle sound, and itsounds like its coming from the floorboard... Theres no mods yet, Ijust orderd the diablo predator and a k&n air intake for it. Do u Guys think its the heat shield or sumthing else? Should I Be worried about this sound? Thanks So Much For Your Replies.....

**Smittro** · 03-16-2010, 10:35 AM

Originally Posted by Anayalator408

Thanks for your replies bro's.. Its a rattle sound, and itsounds like its coming from the floorboard... Theres no mods yet, Ijust orderd the diablo predator and a k&n air intake for it. Do u Guys think its the heat shield or sumthing else? Should I Be worried about this sound? Thanks So Much For Your Replies.....

I still think it's your cat. Prolly broken insides..

**shady milkman** · 03-16-2010, 12:34 PM

Originally Posted by Smittro

I still think it's your cat. Prolly broken insides..

x2 ....mine did the same thing...pissed me off enough to go ahead and buy long tubes to go with my ory i had bought

**Smittro** · 03-16-2010, 12:41 PM

Originally Posted by shady milkman

x2 ....mine did the same thing...pissed me off enough to go ahead and buy long tubes to go with my ory i had bought

Mine sounded like the motor was comming apart. I had a hard time pin-pointing it for a while. I posted a thread on it cause it started out as a head scratcher. @ the time it just did'nt sound like the noise was comming from the cat, and it took it a couple of tries to code. Once I got the SES had it read and bingo..

**shady milkman** · 03-16-2010, 12:42 PM

Originally Posted by Smittro

Mine sounded like the motor was comming apart. I had a hard time pin-pointing it for a while. I posted a thread on it cause it started out as a head scratcher. @ the time it just did'nt sound like the noise was comming from the cat, and it took it a couple of tries to code. Once I got the code had it read and bingo..

mine was easy..the rattling ..sounded like rocks in a can..i knew ....