CarComplaints.com Notes: The 2011 Sonata has a seriously defective engine that seizes without warning. It was awarded the dubious honor of being the first CarTalk / CarComplaints Turd of the Week in late September 2015.

A class action lawsuit was filed in May 2015 against Hyundai that claims the 2.4L Sonata engine is defective. More info here.

4.0

definitely annoying
Typical Repair Cost:
No data
Average Mileage:
112,000 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. not sure (1 reports)
2011 Hyundai Sonata engine problems

engine problem

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2011 Hyundai Sonata Owner Comments

problem #1

May 022016

Sonata

  • Automatic transmission
  • 112,000 miles

A D V E R T I S E M E N T S

I can't find anyone who can find out what will fix this problem. When I turn on my lights I loose compression and then my rpm will jump to 4-5 and then speed will jump to 65. I am worried that I will loose compression and be stuck in the middle of the road or when speed jumps to 65 I will have a wreck

- kalley, Quinlan, TX, US

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