Every 6-9 mos car won't start. 2014 Santa Fe Ltd. after about 15 to 30 minutes it flips right over. It may not repeat until another 6-9 mos.

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The first part that I would check is the coil pack in the car.  This part is known to heat up when they are bad and make the car unable to start.  Most autozones can check the part for free, but sometimes cannot.  I would call autozone and give them your car information and ask them if they check the coil pack to see if it is bad.  

Other symtom could be the fuel pump.  Fuel pumps sometimes go bad whenever you can hear them really loud, that means hat the pump is going out and will eventually need to be replaced.

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I called customer and customer said thhe problem was the switch and that they are taking thhe car to the shop in the morning