Hi everyone. Hope someone can help me out. My son was driving the Crown Vic one night this summer & suddenly the engine started to rev way up but the car was slowing down. Now you have to rev the engine way up before it will start to move. It seems to shift ok once it is going. I haven't had the time or money to look at it so it has just been sitting. Then one day I decided to move it in order to mow the grass under it. When I started it up, the engine started to make a terrible knocking sound, run ruff, smoke & developed a fast drip of oil from the rear r/h side of the engine. The oil level is still ok & have good oil pressure. I'm afraid that it may cost more than it is worth to fix it. Any ideas? Thanks!!