When your 2023 Kia Telluride displays the P0305 code, the engine control module has detected repeated misfires in cylinder 5. The 2023 Telluride continues with the 3.8L Lambda II V6 producing 291 horsepower. With six cylinders, P0305 is a legitimate diagnostic code.
2023 Telluride Powertrain
The 2023 Telluride received updates including new X-Pro trims with enhanced off-road capability, but maintains the same 3.8L V6 and 8-speed automatic. This naturally aspirated V6 remains the only engine option.
Cylinder 5 Location
On the 3.8L V6, cylinder 5 is on the rear bank (toward the firewall) in the center position. Access may require removal of some intake components due to the transverse mounting.
Common Causes
On a newer 2023 model, spark plug wear is less likely unless mileage is high. Ignition coil failure can still occur. Manufacturing defects or loose connections are possible. Check for TSBs. Fuel injector problems may cause lean misfires.
Diagnostic Process
Read all codes and freeze frame data. Check for Kia TSBs. Verify ignition system connections. Inspect cylinder 5's spark plug and ignition coil. Test fuel injector operation. A 2023 model should have warranty coverage.