Safety regulators are looking into how Kia and Hyundai handled their Theta II engine recalls, specifically if the companies acted fast enough. They want to know if Hyundai and Kia did enough and fast enough concerning the recalls of nearly 1.7 million vehicles with Theta engines prone to a lot of noise and finally locking up.
At this point, we know the widespread engine problems are caused by metallic debris left behind during mechanical deburring on the assembly line. Those tiny bits of metal are carried through the engine by oil, wreaking havoc on the way.
Hyundai first recalled their Theta II engines in September 2015. It took Kia nearly one and a half years to issue their first recall, despite overwhelming evidence of similar problems.More information on carcomplaints.com
Many Kia vehicles have a Theta II, a gasoline direct injection (GDI) engine that is well known for having oil flow issues that eventually cause catastrophic failures.