I have a 1995 Honda Odyssey and recently it has lost power at highway speed. I will be driving at 75-80 miles per hour and after about 20 miles I will feel a thump. Within eight seconds the check engine light comes on then the car loses power and shuts off. No other odd sounds or noises. Once the car cools completely it will then start back up. The mileage on my vehicle is about 240,000. Any help would be much appreciated.