2021-2023 Kia K5, Sorento, Sportage Low Oil Pressure TSB

Owners of 2021-2023 Kia K5, Sorento, and Sportage vehicles equipped with 2.5L/2.5L-T GDI Theta III engines may experience a potential low oil pressure condition. This issue is addressed by Kia Technical Service Bulletin (TSB) PS719, which highlights the risk of engine damage if proper oil change procedures are not followed.

The TSB specifically warns about the possibility of an oil filter drain plug being left in the oil supply hole to the engine. This can happen if parts from the oil filter service kit become dislodged during shipping and are not properly identified and removed before installation.

Symptoms

If the oil filter drain plug blocks the engine's oil supply, several symptoms may arise. Vehicle owners might notice an engine noise, which can indicate insufficient lubrication. Additionally, the vehicle's onboard diagnostic system may trigger a warning, resulting in a diagnostic trouble code (DTC).

Fault codes / DTCs

When the engine's oil pressure is affected by this issue, the following fault code may be stored in the vehicle's system:

Code	Description	Module
P052400	Engine Oil Pressure, Low	Engine

This DTC indicates that the engine's oil pressure has fallen below acceptable levels, signaling a critical problem that requires immediate attention. If you experience Kia low oil pressure P052400, it's important to have your vehicle inspected.

Diagnosis / Trigger Conditions

The low oil pressure condition, often accompanied by the Kia low oil pressure P052400 code, typically manifests shortly after an oil service has been performed. The root cause is the improper installation of the oil filter assembly, specifically when the oil filter drain plug is mistakenly left in the oil supply path to the engine. Technicians are advised to inspect the oil filter service kit (P/N: 26350 2S000) for all its components before installation, ensuring no parts are missing or dislodged.

Repair Procedure Summary

The repair involves a careful inspection and correct assembly of the oil filter components. Before installing a new oil filter, technicians must thoroughly inspect the oil filter service kit for all its parts, including the oil filter, drain plug, O-ring, and oil drain plug crush washer. If any parts are found dislodged from the kit, the oil filter itself must be inspected to ensure no parts are stuck within it, particularly in the oil supply hole to the engine. The critical step is to ensure that the oil filter drain plug is not inserted into the oil filter during assembly, preventing it from blocking the oil supply.

Required Tools or Parts

To address this issue, the primary component required is the correct oil filter service kit:

• Part Number: 26350 2S000
• Description: Service Kit-Oil Filter

This kit typically includes the oil filter, drain plug, O-ring, and oil drain plug crush washer, all of which must be accounted for and correctly installed.

Important Warnings

Kia has issued a critical warning regarding the installation process:

• "Do NOT insert Oil Drain Plug into Oil Filter"

This instruction is crucial to prevent the drain plug from blocking the oil supply to the engine, which can lead to severe engine damage and the Kia low oil pressure P052400 fault code. Dealerships are also warned that warranty claims filed for this concern will be subject to chargeback if proper procedures are not followed.

Owner Action

If you own a 2021-2023 Kia K5, Sorento, or Sportage and experience an engine noise or see a low oil pressure warning light, especially after a recent oil change, it is important to have your vehicle inspected by a qualified service technician immediately. Mentioning TSB PS719 can help the technician quickly identify the potential cause. This inspection is critical to prevent potential engine damage due to insufficient oil supply.

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Source: NHTSA ID: 10222116