Question about Hyundai Motor 2002 Sonata
Car has rough idle once in a while stalls sometimes at stops and jumps when on highway when I let off gas then hit it again to accelerate
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Posted on Jan 02, 2017
that sounds like what we call "spark knock" that occurs when u accellerate quickly, but yes it will go away in a few seconds when the computer detects this condition. with the economy the way it is it will be more expensive, but try running higher octane gasoline in it, should cure this condition. hope that helped you!!
Posted on Jul 09, 2009
SOURCE: check engine light flashing
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. Once you do this and let us know what, if any codes are set, then we can go from there. Could be ignition, fuel, vacuum leak, throttle position sensor, crank position sensor, etc., etc., etc.
Posted on Jun 14, 2009
I had same problem and my repair shop just replaced a sensor in the tranny. Said it was a defect by Hyundai,but they won't recall it.
Posted on Oct 21, 2008
Since you did not say what type of transmission you have i will suspect the clutch is slipping if it's a manual.
If it's an automatic, it could be several things. Low fluid level...clogged filter, fluid needs to be changed..transmission serviced...weak pump, bands/clutch packs worn...etc
Good luck..i hope this helps, please rate me a fixya.
Posted on Jul 29, 2009
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