I wanted to know what kinds of different possibilities you think could be my issue with what's wrong. Every time I use my heat or a/c above the lowest settings, my car dies shortly after. Sometimes it dies in mid motion too! I have to turn on the emergency lights and pull over and to restart it. On occasion it takes a couple times to get it going. One time when it died at a red light, I tried to start it again, I heard a loud noise like something blew off of something. . . or fell out. Then, it wouldn't even make a noise when trying to start it one last time. A backyard mechanic replaced the water pump, saying that it was the issue. I've had the spark plugs and wires replaced, oil filter (check engine light comes on/off) and oil changed, (oil is almost black again so soon) and the intake manifold and gaskets. Also, sometimes when I turn the car on and it's still in park it wants to accelerate itself LOUDLY. . . . . . almost like it's desperately trying to go against being in park mode. When I switch gears it sounds normal again. . . .or dies. I have other questions too but I don't want to overwhelm you. Thank you for your time.