First post here so hello everybody! I currently have an 05 echo, great little car and hasn't caused me any problems. However as of a month or so ago there has been a knocking sound coming from the engine bay when idle, however only when I'm in drive and the sound disappears if I shift gear to neutral. The car still runs fine so it may just be a loose bolt or what not but if guys could help me out that would be fantastic. Cheers