GDI engine rod knock / seizure (2.0 Nu / Theta).
- Typically appears
- 70,000+ miles
- What to inspect
- Listen for knock and confirm any engine recall/warranty work.

The 2nd-gen Soul is a practical, funky hatch, but the Theta/Gamma GDI engine and steering coupler are the checks.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed July 2026
The most commonly reported faults on the 2014–2019 Kia Soul are GDI engine rod knock / seizure (2.0 Nu / Theta), Catalytic converter failure damaging the engine on some cars and Steering coupler noise / clunk. Of the documented issues, 1 rated critical and 1 rated high · these are the ones worth inspecting first. Full inspection points, onset mileage and what to check are listed below.
Based on the documented faults on this page for the Kia Soul.
Guidance only · reflects reported patterns, not a specific car's condition.
Which faults an average example has usually reached depends on its age. Pick a model year for the faults that matter on that build.
GDI engine rod knock / seizure (2.0 Nu / Theta).
Catalytic converter failure damaging the engine on some cars.
Steering coupler noise / clunk.
AC performance drop.
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Check this exact carPractical and cheap, but check the GDI engine history carefully.
GDI rod-knock and catalytic-converter failures; confirm any recall work.
Extended powertrain coverage applied to many affected engines; verify it.
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.