The firing order for the 2018 Sorento depends on which engine it has: the 2.4-liter inline-4 uses 1-3-4-2, and the 3.3-liter V6 uses 1-2-3-4-5-6.
In 2018, the Sorento lineup offered two main engines. Knowing the correct firing order helps with spark plug changes, timing work, and diagnosing misfires. The numbers refer to the cylinder order as numbered on the engine. Always consult the exact engine code and service manual for your vehicle.
Engine options in the 2018 Sorento
Below are the standard firing orders for the two engines used in most 2018 Sorento models.
- 2.4L inline-4 engine (GDI) — Firing order: 1-3-4-2
- 3.3L V6 engine (Lambda II) — Firing order: 1-2-3-4-5-6
Note: Firing orders can vary by market, production date, or specific engine variant. Always verify with the vehicle’s service manual or a stamped label on the engine for your exact build.
Notes and verification
When performing maintenance that involves timing components or spark plugs, ensure you follow safety procedures and reference the correct engine code. If you’re unsure, consult a qualified technician or the official service documentation for your exact Sorento model.
Summary
The 2018 Kia Sorento uses two main engines with distinct firing orders: the 2.4L inline-4 fires 1-3-4-2, and the 3.3L V6 fires 1-2-3-4-5-6. Always confirm the exact firing order for your specific vehicle variant via the service manual or engine label.