Daewoo KORANDO Service Manual page 700

Internal Leakage Test
1. Connect the fuel pressure gauge to the fuel pressure test
connector.
2. Stop the engine for approx. 30 minutes and then check the
fuel pressure changes.
Pressure Change
Fuel pressure
drops slowly
Fuel pressure
drops rapidly
3. If there is no change in fuel pressure and maintain the
following pressure over 30 minutes, it is normal.
Fuel Pressure(bar)
Discharging the pressure in fuel system
1. Remove the fuel pressure test connector.
Installation Notice
Tightening Torque
2. Remove the fuel pressure in fuel system by pressing the
service valve with a clean, pointy tool.
Notice
Place a cloth so that the fuel doesn't stain around.
Possible Cause
Fuel leakage at the
·
injector
• Faulty fuel pressure
regulator's
diaphragm and O-
ring.
• Faulty check valve
in the fuel pump.
2.5
22.5 - 27.5 Nm
M161 ENGINE CONTROLS 1F2-53