Theta II GDI Engine Stalls and Siezes

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.

The Theta II is a gasoline direct injection (GDI) engine that is well known for a lot of things and none of them are good. Bearing failure, metal debris riding on contaminated oil, piston ring defects, siezing, knocking, crying.

Manufacturing Problems

It took a long time, but Hyundai and Kia eventually admitted that metallic debris might have been left around the engine crankshaft during manufacturing. That can cause hell on your engine when it comes to oil flow.

In June 2016, a Kia Theta engine lawsuit was filed for owners of the 2011-2014 Optima, Sportage, and the 2012-2014 Kia Sorento.

A Former Engineer Spills the Theta II Beans

A former Hyundai engineer told the National Highway Traffic Safety Administration (NHTSA) that Hyundai was well aware of the Theta II problems, even as they denied it publicly and pushed against a recall.

OK, Now What?

Maybe you've experienced this problem. Maybe you're concerned you will soon. Whatever the reason, you can help make sure it gets the attention it deserves.

  1. File Your Complaint

    CarComplaints.com is a free site dedicated to uncovering problem trends and informing owners about potential issues with their cars. Major class action law firms use this data when researching cases.

    Add a Complaint

  2. Notify CAS

    The Center for Auto Safety (CAS) is a pro-consumer organization that researches auto safety issues & often compels the US government to do the right thing through lobbying & lawsuits.

    Notify the CAS

  3. Report a Safety Concern

    The National Highway Traffic Safety Administration (NHTSA) is the US agency with the authority to conduct vehicle defect investigations & force recalls. Their focus is on safety-related issues.

    Report to NHTSA

  4. Contact Kia

    Kia Support

    111 Peters Canyon Road Irvine CA 92606 USA

    This site is not affiliated with Kia.