Hi,

when I drive at a parking lot or from garage (very slowly), I can hear very loud sounds (like bass drums) from under the car. It sounds like something was not tied up and is hitting the floor, but when I checked, everything seemed to be well mounted.

Any idea or experience?

43k miles, TBE with high flow cat.

 

Could it be part of the Heatshield rattling against the exhaust?

 

what brand of exhaust? hi flo cat?

 

Yes, Miltek HFC.

 

I will check as soon as I get to a lift.

 

Let us know.

 

I get a similar noise coming out of first from time to time. But mine sounds like I'm dragging a piece of metal or something. I've had my car since december of 08. I'm the original owner and have only heard this like for or five times. NO CLUE!