Car Problem Reports

Hyundai Sonata Rough Idle Due to Faulty EGR Switching Valve

Hyundai Sonata Problem
38 Reports
Me Too

Model Years Affected: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2010

Engines Affected: 2.4L 4 Cylinder, 2.5L V6, 2.7L V6, 3.3L V6

Average Mileage: 104,742 mi (16,000 mi - 200,000 mi)


On the 2.7L V6 and 2.4L 4 Cylinder, a defective exhaust gas recirculation (EGR) switching valve may cause an intermittent rough or unstable idle engine.

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