Driving on the freeway and the car lost power
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2004 Hyundai Sonata Question: car lost power on the freeway...lights work but engine won't start
Answer #1patrick mannion from Greg Solow's Engine Room, April 25, 2010, 13:15Master
Its hard to guess without being able to do some basic diagnostic tests. Did it lose power and cut out and fail to start or does it run and just have reduced power? If it failed on the freeway the timing belt could have broken, the fuel or ignition system have lost a key input needed to keep the engine running. The fuel pump could have failed or many other things. If the engine "revs" strongly even the transmission could be at fault but there are too many possibilities to just guess.