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George H.
George H., Hyundai Technician
Category: Hyundai
Satisfied Customers: 2026
Experience:  Hyundai Gold certified, ASE Master tech 15+ years
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2009 Hyundai Sonata, 3.3 v-6. Car jerks severely at speeds

Customer Question

2009 Hyundai Sonata, 3.3 v-6. Car jerks severely at speeds like 30 mph as if the converter is engaging and disengaging rapidly. Trouble codes are P0134, P0300, and P0031. The P0300 code is the most concerning because it suggests multiple cylinder misfire which would account for the drivability problem. Can you lead me to the cause? Bill
Submitted: 3 months ago.
Category: Hyundai
Expert:  Greg replied 3 months ago.

After the O2 sensors where replaced did you clear codes and then test drive and recheck for codes .

When was the last service done .like timing belt ,spark plugs etc.


Customer: replied 3 months ago.
I was looking for someone who knew more than I do. A 2009 Hyundai Sonata V-6 3.3 engine doesn't have a timing belt. I'm not interested in working with an out of work dance instructor.

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