Kia Sorento: Release Residual Pressure in Fuel Line

Kia Sorento (MQ4, 2021-2026) Service Manual / Engine Control / Fuel System / Fuel Delivery System / Release Residual Pressure in Fuel Line

Release Residual Pressure in Fuel Line

•	The residual fuel may be released after the "Release Residual Pressure in Fuel Line" procedure, so cover the connection area with a cloth or the like before disconnecting the fuel line.

•	Wear the Personal Protective Equipment (PPE).

1.	Disconnect the battery negative ( - ) terminal.

2.	Remove the fuel pump fuse (A).

3.	Connect the battery negative ( - ) terminal.

4.	Run the engine for about 1 minute to lower the pressure in the low pressure line.

5.	Switch "OFF" the engine.

Disconnect the low pressure fuel line quick connector at the high pressure pump.

Use rags to cover opening and catch spills while removing the fuel line.

7.	Start the engine and let it idle until the engine stops.

8.	Proceed with the service or repair.

Reinstall / reconnect all components in reverse order of removal. Start engine and confirm proper operation, and make sure there are no fuel leaks.

After completing, clear DTC(s) using KDS scan tool (the procedure described above will cause DTC to set).

Fuel Pressure Test

Special Service Tools Tool Name / Number Illustration Description Fuel pressure gauge09353 - 24100 ...

Delivery Pipe Components and Components Location

Component Location 1. High Pressure Fuel Pump2. High Pressure Fuel Pipe3. Rail Pressure Sensor (RPS)4. Low Pressure Fuel Injector 5. High Pressure Fu...

Kia Sorento: Release Residual Pressure in Fuel Line

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