Hey guys, lately I keep getting this weird noise everytime I accelerate. Sounds sort of like a horn.

You can hear the noise at 21-24 sec, 28 sec, and 48 seconds in the video. Anyone know what that noise is?

Car is 2004 coupe, auto and everything is stock except for intake (z tube and jwt pop charger).

 

Only looks like it happens at 1800 RPM... sounds like some slight resonance / vibration- Intake / exhaust? I'm not sure.

Does it sound like it's coming from beneath you or infront of you?

 

Ya I only hear the noise around that rpm. Noise sounds like its coming from beneath.

 

i couldnt hear it too too well on the vid but i think i caught it on the last one. mine seems to/might be doing the same thing. ill keep this posted while i investigate

 

bumping this back up. Still don't know what that noise is.

 

Did you ever figure this out? Could be catalytic converter disintegrating or heat shield rubbing on exhaust???

 

sorry for the late reply but it was a loose heat shield rubbing against the exhaust pipe. sound is gone now.