Question about 1999 Hyundai Accent

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1999 1.5 Hyundai accent

Hi my car is giving me grief. Near the end of last year while driving it just completely cuts off. When you restart the vehicle it takes time to turn over but eventually it does start. Before it cuts out it seems to lose power completely. This started to become more frequent. It would cut out both cold and hot.
I have taken it to a automotive electrician(thinking it could be electrical fault) after testing the vehicle they informed me that it definitely isn't an electrical problem. The things that we have done are changed fuses, battery and spark plugs. (to no avail) Can someone please let me know what the problem could be so I can get it dealt too immediately. The electricians made assumptions but I need realistic information.
Thanks

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  • 2 more comments 
  • emmt2000 Jan 26, 2009

    Thanks for this. No none of this has been done. I will get them tested immediately thanks for the advice. I will let you know of the outcome.

    Cheers

  • Anonymous Feb 22, 2009

    Hello
    Just posting an update on this problem. At present I am still having the same problems but the car seems to shut off more often. We have now figured out that it tends to have starting issues on a hot day or when it is running. When the cars cold (unused) it just starts up immediately. The car can run smoothly under 5mins but then completely shuts off again and refuses to start (when it refuses to start it has been tested and it gives out no sparks). This is what we have done to the car so far:
    Ignition Timing or Fuel Pressure been tested (fine) the timing belt is fine. The fuel pump is fine, we have replaced the fuel filter. The heat sensor is fine. The ECU was checked and that is fine. Starter motor is fine. We are finally going to try our last replacements:

    - We will be replacing the Relay box for the fuel pump
    - We will be replacing the Cam sensor
    - We will be replacing the Crank sensor

    If the problem still exists looks like a new car is on the cards. I will give further updates to see if it eliminates this annoying problem. Always look forward further advice.
    Cheers

  • Anonymous Feb 24, 2009

    Hi
    I have had the relay changed and the crank shaft sensor replaced. So far the car can idle without turning off and starts up immediately. I can drive around the block without manually pushing the damn thing. Crossing my fingers to see whether this is longterm. The poor car has pretty much been disected in the past month. We had to isolate the problems one at a time. By the time I finish I should have a new fitted car :-) Will check back to let you know whether it was a positive update.

  • Ronnie Wilson May 11, 2010

    Has the Ignition Timing or Fuel Pressure been tested. As in Timing belt It could have Jumped a tooth-----And Fuel the Pump Could Be weak or filter Extra Dirty.

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  • 26 Answers

This sounds like a speed sensor on the engine you need an odb2 scanner or bring it to autobarn for a FREE check

Posted on Jan 28, 2009

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