Hey,
Just recently i've started noticing that sometimes when I put my car in first gear (when it's at a complete stop) it makes this THUD sound. All other gears are fine and this happens occasionally. It doesn't impair my driving or anything in any way. What could it be?
Another thing. My trunk doesn't open when it's unlocked. I have to take my key, turn it all the way, hold it in that position, and then push that lock thing and lift the trunk up. Shouldn't it work without me having to turn the key all the way and hold it there?
And lastly, when I cold start my car, I can hear a noise from the engine area which ends up going away after maybe 5 mins or so? It's like a "chan-chan" noise, I guess in english it's like...a high pitched rattling sound? Sort of like when you take two pieces of jewellery and hit it against each other?

Bad example I know. What could be the issue here?
I have a 2000 integra GS btw.
Thanks~