What the he** ! I can't figure this out. My car was running fine, then one day I noticed the exhaust was getting hotter and hotter...I mean it's glowing red! I started it today and let it idle for about 5 minutes, a leaf fell on it and it immediatly caught fire. I don't know what's going on. It's not the fuel, I don't think. What else could it be? Vacuum leak? somebody help! could my timing be off somehow? I'm so frustruated about it. I'm afraid to drive the car. Also, I think I have an exhaust leak or due to the same problem it sounds like crap. I'm at my wits end....help a brother out somebody! I'll try anything, If I can't figure this out I'm going to drop the engine and I really don't want to do that.