I have a 2005 explorer xlt with the 4.0 v6 with around 56,000 miles. I have been having a lot of trouble with it killing on me. It started while it was under warranty and they attributed it to a bad tank of gas when I brought it in. In the last couple of weeks it happens probably once a day. It either happens when I am going around 30 and coast, it then kills while I'm coasting, or it happens when i am going faster and am decelerating by coasting (going from 55mph onto an on ramp or when the speed limit drops) It doesn't make any odd noisesand the engine isruns smoothly.No electrical issues, that I can find. Should Ihook up a voltmeter to see if it dips horribly when I am coasting and try to monitor it in the car?Any ideas? I have the extended warranty, but I don't want to drop the $100 bucks to get the same answer.