I have a 2002 V6 with about 80,000 miles on it. Just today, I was driving home from school for the weekend (about 200 miles). I made it over 100 miles, pulled off the freeway and parked for about 20 minutes. When I turned the car back on, there was a loud whining noise that changed with engine speed. I thought it was the water pump, but the car is misfiring now. I didn't think the water pump would cause it to misfire that bad. No overheating yet, but once the noise started I didn't take any risks. Towed it the rest of the way, haven't had much of a chance to look at it, but I was hoping maybe someone would have some kind of idea as to what it might be.