Question about 2001 Hyundai Elantra

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Engine looses power and jerks on 1500-2000rpm

Over a month having the problem on my Elantra 2001, stick , 1600 cc. In general the engine runs fine with only one exception Jerking, or chuging, occurs on 1500-2000 rpm when going uphill. Once the rpms are above 2000 everything becomes normal. Changed the coils, the problem went away for a couple of days, and now it acts up again. Checked spark plug cables resistance - all are normal. One thing, on the second connector was some kind of silvery dust, could that be a sign of a defective connecor?
Had a timing belt replaced recently, but doubt if it is the problem of a missed notch, otherwise the symptoms would have been different.
Mechanic had checked the engine with the computer - all readings within normal range on idle. He said that probably it is my driving habits, changing gears too early. But I clearly can feel the differnce.
My friend noticed that the engine is noisier than it used to be.
One more thing, the pheomenon is clearly present when the engine is hot, or I've driven for a hundred kilometres or so.
PS. Suspicions: 1. The spark plug connector 2. Spark plugs 3. Some people suggestions: O2 sensor, speed sensors, catalytic convertors 1 or 2.
Please help, spet over 400 bucks but still struggling. Oh, and one more thing, would i need a mechanic or can I fix it myself (l4evel of difficulty)? Thanx

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  • Anonymous Apr 24, 2009

    my car does this as well. 2001 elantra automatic. I have 210000 kms. Should i change the timing belt?

  • cartube Apr 25, 2009

    Ah finally, traced it down!!!!!!!!!!!!!!!!!
    The spark plug wire was the problem!
    It was shorting somwhere.
    Changed spark plugs and wires and now car runs as a new.


    Beautiful!!!!!!!!!!

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Got a 200and just started doing aa5 hyndia sonata car hesitating and stalling replaced camshaft sensor was fine just started doing it again any soulutions

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Did you get a Check Engine light? Whenever the "Check Engine" light comes on, there is always a DTC (Diagnostic Trouble Code) stored in the ECM (Engine Control Module). You'll need an OBDII (On-Board-Diagnostics) scanner to retrieve any codes recorded/set in ECM. If no light, then I'd say you have an ignition lead (spark plug wire/insulators) arcing inside one or more spark plug wells.

Posted on Jun 06, 2009

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