Hey guys. My engine has a similar deal to what some of you guys are complaining about. Its idle can go up and down but nothing too extreme. Anyway, when I shut off the engine, it gets really rough right before it dies and shakes the car for a second. Is that normal? As far as I know it has always been that way but I'm not sure. Also, is changing the spark plugs and belts an easy thing to do? My car has 59,000 miles and needs those things replaced.