1998 Hyundai Sonata Engine Problems
4 owner-reported engine complaints from NHTSA data
Data sourced from NHTSA public database. For informational purposes only. Always consult a qualified mechanic.
Owner Complaints (4)
Your check engine light isn't working, and your vehicle's diagnostic system isn't communicating properly with the onboard computer. Because of this, your evaporative emissions system isn't functioning correctly, which means your car can't pass emissions testing and isn't meeting clean air standards. This will likely require diagnosing and repairing the OBD system communication issue and checking the evaporative system components.
Parts you may need:
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Your check engine light (EGR warning) stays on while driving at any speed. The dealer has already replaced the EGR valve and EGR switch twice, but the light hasn't turned off. The issue likely involves the EGR (exhaust gas recirculation) system or related sensors that need further diagnosis.
Parts you may need:
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MY CHECK ENGINE LIGHT KEEPS COMING ON AND MY CAR THEN SURGES THEN THE LIGHT WILL GO BACK OFF.THE ENGINE ALSO KEEPS MISFIRING RUNS ROUGH AND SURGES. MY FUEL MILEAGE HAS REDUCED DRASTICALLY DOWN TO ANYWHERE FROM 15 TO 19 MILES PER GALLON. ALL FOUR OF MY TIRES KEEP GOING FLAT . *AK( DOT NUMBER: P195/55HR TIRE SIZE: P195/55HR )
ENGINE FAILED. YH