One problem related to engine has been reported for the 2004 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Hyundai Elantra based on all problems reported for the 2004 Elantra.
I was driving a hyudai elentra rental car and I was stopped at a red light with the car in drive and my foot on the brake, and the brake was not holding the car back and the car was drifting forward a little into the intersection. I put the car into neutral and you could hear the engine revving very fast even though I did not have my foot on the gas pedal. I told the attendant when I returned the rental car that the brake wasn't holding the car back at a red light, but told her that I did not know what the problem was. She said that she would take the car out of service to be checked. The following week in the March 9 USA today there was an article reporting that some Toyota camrys, camry solaras, and Lexus ES 300s surged forward with no reason. I believe that this is what occurred in the Hyundai that I was driving. I have called avis to give them the car number that I was driving so that they can take the car in to be checked. I have listed the car below as a 2004 model. I believe that it was a 2004 because it was new and had low mileage. A question below asks whether it had cruise control, but I don't know.