Rattle on the bottom

[94capl99]

There's some mysterious rattling coming from the bottom of my car. I thought it was a transmission, but it seems to "hollow" to be, and the tranny is working top notch, no slippage and nice and firm upshifts..


http://www.youtube.com/watch?v=kRsWwLXO9Cc (http://www.youtube.com/watch?v=kRsWwLXO9Cc)

[firebird_1995]

Couldn't really hear it in the video but it might be worth checking the torque converter bolts and motor mounts.

[94capl99]

Ok I'll check that stuff out this weekend when I can.. I'm on forced overtime again at work right now.

I should mention, this only happens once it warms up. When cold I can't hear the sound.

[popo8]

heat sheild on the cat

(keep in mind i did not watch vid)


Larry (Popo8) Co-owner
LTXtech.com

[94capl99]

No cats, so not sure how that could be rattling if it's not there. :P

[popo8]

Good luck.

[firebird_1995]

There needs to be an "are you sure" question after you hit thanks. I fall asleep with the phone in my hand and click all kinds of crap...

[Madman337]

Kinda sounds like it could be a loose baffle in the muffler maybe?
When the car is cold smack it with your hand and see if you hear the noise.

[94capl99]

Ok I'll do that and see what happens. Thanks for that suggestion.

[zooguy]

Kinda sounds like it could be a loose baffle in the muffler maybe?
When the car is cold smack it with your hand and see if you hear the noise.


+1

[95ImpySS]

Do you still have the pipe the smog pump installed? Is the pipe that joins the passenger side to the drivers side still on the car? Sometimes that can make a odd rattle. No sound on this computer, Ill take a listen when I get home.

[94capl99]

Do you still have the pipe the smog pump installed? Is the pipe that joins the passenger side to the drivers side still on the car? Sometimes that can make a odd rattle. No sound on this computer, Ill take a listen when I get home.
No I removed all that stuff..

I got another clip of it that might sound better, but the video is black cause it was at night under the car when I parked. I'll upload it when I get a chance.

I think it might be the exhaust pipe itself, I don't think I should be able to shake it, lol.

[94capl99]

Here's another clip.


http://www.youtube.com/watch?v=1qcpVdgx4pE

You can kinda hear it near the end.. It doesn't sound as clear as I hear it in person, not sure why.

[CamaroZGuy]

flange bolt?

[94capl99]

Possibly.. I'm going to have to get under the car tomorrow.. Right now I'm tired from running errands that had to be done.

[94capl99]

flange bolt?
Yep it was the flange bolt. Or lack of.