I didn't want to start a new thred. So when I start up the car after its been parked overnight, I hear this sound, its similar to when you have a small leak in your power stearing, or maybe like your water pump wasn't done right when it was replaced. It goes away when the car has warmed up, but goes away when I push the clutch pedal in. When I release the clutch, I'm parked during this BTW, the sound comes back after a few seconds. The sound starts when the engine starts to go down in revs while it's warming up. I'm bringing it to Honda tomorrow, but was wondering if anyone had an idea of what this could be. None of my old used hondas ever did this. I hope it's not related to them replacing the rocker arm when it broke. Also they replaced more than the rocker arm. When they did that I got the car, turned it on, and went right back into the shop. I said it sounds like a diesel engine. They said it has to break in, of course I said thats bs and I think you need to tune the valve tran cause that's what a honda sounds like when it's needed. They did and drove around with it hooked up to a laptop for about 2 hours and got it fixed. If anyone thinks this could be related I'd like as much info as you got. This car is making me not like hondas anymore, which I thought ID never think. I should of bought an older type r