I'm hoping someone's familiar with this problem. I have a 2000 Acoorde SE that makes a clunk anytime I shift from park into reverse and it's particularly loud if the car was sitting for a while (hours). Mileage is 26K (low) and the tranny is smoothe but the noise defeats me. On another note, if I start the car and drive 15 feet going forward I get a weird sound like a loud buzz, just once and it seems the brake pedal moves a bit. Doesn't happen again unless it's been sitting somewhere for a while.