Knocking

[Talon2z]

I have a 99 GS-T. Sometimes at idle, I can hear a dull knocking sound coming from the passenger side floor board area. I can't hear it outside the car though. This is with all accessories off. Any ideas what this could be? I don't hear it all the time. My car has 64K.

 

[HITNRUN]

It sounds like its caused by the vibration of the engine. Like an engine mount has too much movement. What I could do is turn off the car. Put it in 1st gear. Lift the hood. And pull and push the car back and forth. This will cause the engine/transmission to move. See if you can hear the knocking sound.