14,000 miles, ecu/trac update completed. In the last 2 weeks, twice while I was refueling, my engine shook and quaked but came back to life before it died. Yesterday as I was slowing to turn left, it practically quit for just a brief second I thought I was in the rodeo on the bull right as they open the gate. I heard a pretty loud, "THUMP!" My kids got all excited because it was almost like I cut the motor off and put on the brakes for a split second. Then everything picked up and worked fine. Any ideas?