Question about 2001 Hyundai Sonata

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My 2001 Hyundai Sonata's check engine light is on and it's running really rough, trying to die when idling and surging while being driven. Could his be a sensor, or maybe a coil? Thanks for any info you may have. Sheila

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I have a 2007 hyundai sonata it don't get any power you push on gas and don't any thing no power at

Posted on Jun 07, 2014

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I Have similar problems in mine. At engine idle it sounds like the engine has "hiccups" and when accelerated i lose power and sounds boggy or like the engine is choking. i ran tests and it is caused by failire of the oxygen or O2 censor. If you look at the very front of the engine at the exhaust manifold where the exhaust system starts there will be 2 plugs on the right side of the manifold and the bottom one is the o2 censor.

Posted on Jan 22, 2011

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I do not believe the two are closely related but try disconnecting the battery and reconnecting it again. Only the negative side. also check for a loos connection.

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It sounds like your engine is gummed up. I recommend that you get two bottles of a fuel additive called seafoam and dump them into the gas tank. In no time, your engine will be purring again.

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1. There is NO SCREEN.
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Aug 11, 2009 | 2001 Hyundai Sonata

1 Answer

ENGINE WANT'S TO DIE WHEN YOU ACCELARATE


Here is the most common cause of surges and stalls at stops and low erratic idle speed and rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Mar 12, 2009 | 2000 Hyundai Sonata

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