Kia Rio: Release Residual Pressure in Fuel Line - Fuel Delivery System - Engine Control / Fuel System - Kia Rio UB 2012-2020 Service ManualKia Rio: Release Residual Pressure in Fuel Line


     
Whenever the high pressure fuel pump, fuel pipe, delivery pipe, or injector is removed immediately after shutting off the engine, an injury may be caused by the release of highly pressurized fuel. Release the residual pressure in the high pressure fuel line by referring to the "Residual fuel pressure release procedure" below before removing any high pressure fuel system components.

     
Wear safety glasses and fuel resistant gloves.
1.
Turn the ignition off and disconnect the battery negative cable.
2.
Remove the rear seat cushion. (Refer to Bady - "Seat")
3.
Remove the service cover (A).


4.
Disconnect the fuel pump connector (A).


5.
Disconnect the electrical connector from the high pressure fuel pump.
6.
Reconnect the battery negative cable.
7.
Run the engine for about 20 seconds to lower the pressure in both the high or low pressurelines. The engine may shut off within the 20 second period. If not, turn the engine off.
8.
Proceed with the service or repair. Use rags to cover opening and catch spills when opening up the high pressure system.
9.
Reinstall / re-connect all components in reverse order of removal. Start engine and confirm proper operation, and make sure there are no fuel leaks.
10.
After completing, clear DTC(s) using GDS scan tool (the procedure described above will cause DTC to set).
Fuel Pressure Test (Low pressure system)
1. Release the residual pressure in fuel line (Refer to the Fuel Delivery System - Repair Procedures - "Release Residual Pressure in Fuel Line"). ...

Fuel Tank Removal
1. Release the residual pressure in fuel line (Refer to the Fuel Delivery System - Repair Procedures - "Release Residual Pressure in Fuel Line"). ...

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