Question about Hyundai Motor 2004 Sonata

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My car is a Sonata 2004, 2 litre about 60,000 kilomtrs. It has started not accelerating properly. i mean when in second gear it's fine when i am trying to accelerate on moerway for example nd need to overtake i press on the accelerator nothing happens then the speedometer goes up but the car does not acelerate. a few seconds later if i reduce acceleration it slowly starts to speed up. can u help!!!

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Your problem is difficult to diagnose in part because of limited info to go on. I have a couple of questions and some possible solutions. First of all, I'm making an assumption since you speak of second gear, that you have a manual transmission. Secondly, the spedo measures transmission output and translates to speed on your instrument panel. It sounds as if the tachometer is racing up rather than the spedo. The fact that it does good in a lower gear than a higher ratio indicates possibly that your clutch is slipping during acceleration. If you can clarify a few things perhaps I can be of more assistance with your problem. #1 Is it manual shift? #2 Is it possible that your tachometer is going up and not the speedometer?

Posted on Jun 21, 2009

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