ok, my car has a really deep ticking/knocking coming from the top part of the engine more towards the passenger side. It doesnt do it when the car has been sitting over night and i start in the morning, but it does do it after i have driven it a few miles and then it sits a few hours. when i come back to start it up while its idling it has this noise. but it goes away after the engine warms up and i drive it up the road.for instance, ill start it up in the morning, it is fine, then i drive to work park, go in and then come out for lunch and start it up and it starts making the noise. i dont know what it is. i thought about that tsb, took it to the dealership, and they said they didnt hear anything. i tried to tell them it doesnt do it consistently. its not rythmic or anything and it only does it at idle. any ideas?