Hey mate Actually my car is at the auto electrician, when I get it back I can check what auto it runs It depends actually when the car is cold it drops in gear straight away until I run the car for about 20-30 min it is Realy slow and sloppy This happens happens at the same time when the overdrive light is flashing, sometimes it stops flashing on the drive, but still slow moving forward I've checked the temperature all the time when it happens it is in normal temperature area, it has even no power after about 30 min running the Car. Your last question is exactly right except that it looses engine Revs aswell And one day It stopped at the traffic lights for about 5 min and couldn't get up the hill, I'd tried it on every gear, but the Rev's would only run up to about 1500 After 5 min of trying everything is could think of, it slowly started working again