I have a new 03 HO ctd. It is running great and has about 2000 miles on it. I am now noticing a knocking sound coming from the transmission area when it is in neutral. If I push the clutch in, it goes away and sounds quite and beautiful. If the clutch is out, it still sounds beautiful but is not as quite and is like a knocking sound. Everything is working fine, am wondering if I should be concerned or should take it in. I don't trust my local dealer so the next best dealer is an hour away. A friend thought it may be a throw out bearing but was just guessing. Any ideas, suggestions or previous experiences would be appreciated. Thanks