I'm hearing some weird noises with my car.

When I start it first thing in the morning or after it has been sitting for a long time, there's a metal rumbling sound which goes away after 15 mins of driving.

Another thing is whenever I start my car, after going above maybe 10 MPH, I hear some type of burp sound. This sound only happens the very first time the car goes past 10 MPH, but it always happens after starting my car (if I come to a complete stop and the engine is still on, there is no sound after accelerating).

Anyone have any suggestions? It's a 2004 coupe.

 

The "burp" sound is normal i think. My car does it too. I think it might be the emissions control or something.

 

Ok, someone else told me the same thing (something opening up).

 

The 2nd is the ABS system check to check that it's working ok, idk about the first thing.

 

^ Any idea how to check it? Or do I need to take it to a mechanic?

 

No, it's not a problem. It's the ABS doing a system check, making sure everything is ok. It's supposed to make that noise, if it doesn't that's when you have the problems. I think it's the computer locking the brakes for .001 of a second to make sure they are working ok, hence the noise.

The 2nd noise sounds like something getting warmed up, but I'm not sure.