Question about 2000 Hyundai Sonata

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Hyundai Sonata jerks/loss of power

My car jerks it seems around 2250rpm.Right before it jerks it will make an odd noise like the car cant accelerate. when i am beginning to drive it up a hill it will **** so much that i think it will die. When it does **** the rpm dips suddenly. It has also lost a considerable amount of power. When it does go up a hill it will only go around 20 mph. the problems increase as i drive.
i took it to autozone because it had the check engine light on. So the code said somethin like cylinder misfire. that is a bit obvious... but im not sure what is causing the misfire.

i think the loss of power could be catalytic converter blockage maybe.
and i read somewhere on this website that this car had a broken motor mount that caused a break in the air intake... which caused more air to flow into the engine that the O2 censor measured.

More history: It has had multiple problems and ive had to change the crank shaft censor(4months ago) and fuel pump and fuel filter before(a year ago). My passenger front side of the car shakes a lot because of a broken motor mount. i think may be part of the problem.

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  • zweisamkeit Dec 28, 2008

    it is editing the word jer k. i dont know why. (****) minus the (). sorry for the inconvenience

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I also had this problem with my hyundai accent 1.3i i changed the ignition leads and spark plugs the car goes much better now the problem was that one of the plug leads was tracking. hope this helps.

Posted on Jun 26, 2012

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Ok engin mount
this can cause so much trouble and can end up costing you big time
now with the miss fire
you could have loss of spark on an injector could be blocked
for spark
distributor
spark plugs
leads
rotor button (sits in distributor )

with fuel
just gets some injector cleaner and see if that works

for your sake i would fix the mount
it could be causing all the problems
hope this helps
ricko


Posted on Dec 28, 2008

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Has your car ever had a tune up those little 4 cylinder cars will do that even if 1 cylinder isn't firing properly, so in conclusion what you can do is make sure all your spark plug wires are pushed on all the way since the motor mount is broke they might be coming loose but what i would do is change the spark plugs and wires and fuel filter.. just give it a little tune up if your at all handy you can do it yourself and the parts are cheap you might have 60 bucks into it... if you need anymore help or need me to help you with doing the work just let me know and ill answer all of your questions... Please give me a rating if this helped you
thanks Steve

Posted on Dec 28, 2008

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