Anyone else's 8th gen Civic sound like a diesel? (loud injectors?)

[yacoub]

2006 sedan EX, automatic trans. When idling, from the driver's seat the car sounds like I have a diesel under the hood. I notice this a little more when the weather gets cold out, although the engine does it when it's warm or cold.

Just wondering if anyone else's has rather loud ticking/tapping sound that reminds them of the sound of a diesel engine. I'm guessing it's the injectors or the valvetrain, but why are they so loud?

Also I notice (either the same noise or another noise) especially when the car is engine braking during deceleration at low speeds. Like when letting foot off the accelerator when coming up to a smooth speedbump. If I put it into neutral the car stops making this (other?) deceleration noise. Dunno how to describe it. Sort of a mechanical sliding or swishing sound with the whine of the transmission mixed in. Like the engine is being used to brake the car but it doesn't sound happy to be doing it. heh