Rough Idle Due to Faulty EGR Switching Valve: Hyundai Sonata Engine & Powertrain

Problem overview

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.

159 people reported this problem

43 comments

Schedule Repair

Hyundai Sonata vehicles with this problem

Average mileage: 114,047 miles

(5,400 - 320,000)

Repairs related to this problem

EGR Valve Replacement

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Rough Idle Due to Faulty EGR Switching Valve on Hyundai Sonata