Hi all, I am a new owner of a 2005 E. It has 55k on it. This is the most user friendly car I've ever owned but...within the last week (I've owned it for two months) while driving at freeway speeds, it will start to buck, jerk, miss...especially with a load on it..like going up a grade. I will only be able to keep a little bit of throttle on it, or it will act like it's running out of fuel. Eventually it will slow me down so much that I have to pull over. Now...once I pull over and shut it off it will start up and run fine ...for a few miles, then start it all over again. I realized that if when it starts to buck, jerk, miss if I turn the key off and back on instantantly, it will run perfect for a short while..then do it again..this sounds "elecrtical" to me????? Anybody come across this situation?? Thanks in advance for your help. Mike