my car work properly ,suddenly not work on 1997 Kia Sephia

My car work properly and suddenly the velocity decrees and no fuel when I press on fuel foot but if switch it off and on its work properly for few day and the problem comeback

Asked by for the 1997 Kia Sephia
I'm suspicious that the fuel pump is failing or the fuel filter is plugged up. Replace the fuel filter if it's old, and check the fuel pressure to see if the pump is failing. A Kia or Mazda mechanic could help you with this.
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