Question about 2007 Hyundai Sonata Limited Sedan

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About 15 minutes after I start and drive my 2007 Sonata on the highway at 80 KMH the vehicle begins to shudder. Passengers in the car can feel and hear as well. If I pull over and stop and then start up again the problem is gone. This began at about 40,000 km. The problem is intermitant. The mechanic at the dealership experinced the problem on a test drive. They balanced the wheels, rotated the tiers, serviced the brakes and tightend the suspension to the tune of several hundred dollars but the problem still occurs. It feels more like a powertrain problem as the accelartion drops off. SUGGESTIONS?

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Take it back to the dealership and DEMAND they FIX it!

Posted on Oct 03, 2009

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