Question about 2000 Hyundai Sonata

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Cranks but wont turn over

I have 2000 Hyundai Sonata of course. It broke down when i was driving on a road trip. It suddenly lost power and after that wouldnt even crank. I got it towed and the mechanics tried fuel pump but that didnt work. They replaced a crank shaft censor and then it worked for a while. They also replaced balance belt and timing belt. While driving up a hill it would jump crazily from 200rpm to 4000rpm. It worked for around 300mi. Then it stopped working again. Same thing happened. Just lost power. wouldnt crank. Had it fixed again.. the computer said a cam shaft censor was bad. so we changed it. also changed spark plug cables. Still doesnt work. It turned over for a few seconds but shut off suddenly. It tries to turn over now but doesnt.

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  • Anonymous Sep 17, 2008

    I have a 2000 Hyundai Sonata with about 95K on it. It has had pretty much all the problems you describe and more. The dealership has replaced just about every sensor you can imagine in it (mass air flow, crank, cam... as well as other - expensive - things). Each time they tell me they have diagnosed the problem and the proposed repair will fix it. The results have alternated between "well replaced that but now have found that there is another problem which will cost you $$$???" to me getting the car back, having it run for a short period of time (1-2 weeks) and then just stopping again. Have had it back about 2 weeks this time and it is sitting dead outside my 16 year old daughters school where she find herself stranded at 9 p.m. this evening. I'm 53 years old, have owned a lot of vehicles in my time, but have never seen anything like this. I'm gonna have it towed back to the dealer and if they want any more money from me to fix it I'll just tell them to keep it. The weather is starting to cool down in Wisconsin and if I just started burning piles of money in the backyard at least I could use that to keep warm which is more value than I've gotten out of the Hyundai service here.

  • Anonymous Sep 20, 2008

    I have the same problem...I hear almost like a grinding when mine dies...I've spent $800 in repairs the past 2 weeks trying to diagnose the problem, one garage replaced a sensor, that didn't work then I took it to the dealer figuring they had to know what it would be, picked her up today, they replaced a hose that was cracked, I took her out tonight...she cut out again. I managed to get her started and drove about 15 minutes no issues. I know she's on the way out but can someone tell me if they think it would be the altenator, I've been thinking that from the beginning but no one is listening to me.!

  • matt354597 Oct 13, 2008

    i have a 2000 hyundai sonata my first problem it dies down when i first take off then suddenly it kicks in and goes... why is that??? second problem i was driving home from work and my car dies on me... it tries to turn over but doesnt... when i was outside of my car and my wife tried starting it i heard like a winding or hissing sound dont know if that helps you but please help me out.... my car only has 65k miles and i just bought it like 2 months ago... so please help me if you can i already changed my plugs, wires and coils......

  • Anonymous Feb 10, 2009

    we are having a problem with a 2000 sonata shutting off while driving without warning and WILL not start back up imediatley , has to set for a few hours then it might start got any help for us??????

  • Yoganand May 11, 2010

    I might have a solution if you can give me little information. When you crank the car and when the engine wont turn, do you hear any sound? if not, let someone crank the see if you hear any sound under the bonnet. Let me now if its a hiss sound.



1 Answer

You know. i took it to a mechanic and actually.... The timing belt cut the Crank Shaft Censor... So it was the crank shaft censor again. The wires were routed wrong from the first mechanic that "fixed" the car.

Posted on Sep 06, 2008


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