Isuzu KB P190. Manual - part 804

Fuel System – V6 

Page 6C – 14 

 

Removal 

1 

Depressurize the fuel system, refer to 3.4 

Fuel 

System Depressurisation. 

2 

Use compressed air to remove any dirt around the fuel 
line quick connect fittings prior to disconnecting the 
fittings. 

Figure 6C –  9 

3 

Hold the connector in one hand and depress the 
square release buttons on the connector body while 
gently pulling the quick connector and the fuel line 
apart with the other hand. 

Figure 6C –  10 

4 

Cover the quick connect fittings to prevent dirt or other 
foreign material from entering the system. 

 

 

N O T E  

•  Check the fuel lines and connector fittings for 

any scratches, rust, dents, or cracks. 
Replace the connector or the fuel line if found 
to be defective. 

•  Inspect the O-rings in the quick connectors 

and replace the connector if found to be 
defective. 

Figure 6C –  11 

Fuel System – V6 

Page 6C – 15 

 

Reinstall 

1 

Apply a small amount of engine oil or light oil to the 
fuel line to assist in the assembly of the connector. 

 

 

N O T E  

Assembly of the fuel line and quick connectors 
should take place immediately after applying the 
oil to prevent any dust from sticking to the 
surface, which may cause the connector to leak. 

Figure 6C –  12 

4.2 Fuel 

Filter 

Removal 

1 

Depressurize the fuel system, refer to 3.4 

Fuel 

System Depressurisation. 

2 

Disconnect the battery ground cable. 

 

A small amount of fuel will flow out of the 
fuel lines and filter when disconnected. 

3 

Locate the fuel filter attached to the front of the fuel 
tank, place a drain tray below the fuel filter and 
remove the fuel line quick connectors from the inlet  
(2) and the outlet (1) of the fuel filter, refer to 4.1 Fuel 
Lines And Quick Connect Fittings. 

Figure 6C –  13 

Fuel System – V6 

Page 6C – 16 

 

4 

Release the 3 clips (1) on the passenger side of the 
fuel filter holder and slide the fuel filter from the holder 
in the direction of the arrow. 

 

N O T E  

Cover the quick connectors to prevent any dirt 
from entering the fuel system. 

Figure 6C –  14 

Inspection 

1 

Replace the fuel filter if fuel leaks from the filter body or if the fuel filter body itself is damaged. 

2 

Replace the fuel filter if it is clogged with dirt or sediment or the filter shows signs of being contaminated with water 
or other foreign materials. 

Reinstallation 

1 

Slide the fuel filter into the holder attached to the front 
of the fuel tank, make sure the three plastic locking 
clips secure the filter in place. 

N O T E  

•  Ensure the fuel filter inlet line is facing the 

drivers side if the vehicle and the outlet line is 
facing the passengers side of the vehicle. 

•  The direction arrow indicates the direction of 

fuel flow. 

2 

Connect the inlet and outlet fuel line quick connectors 
to the fuel filter, refer to 4.1 

Fuel Lines And Quick 

Connect Fittings. 

Figure 6C –  15 

 

Fuel System – V6 

Page 6C – 17 

 

4.3 

Fuel Tank and Pump Assembly 

 

Figure 6C –  16 

Legend 

1 

Fuel Feed Line 

2 

Fuel Return Line 

3 

Fuel Emission Line 

 

4 

Fuel Pump and Sender Assembly 

5 

Connector; Fuel Pump and Sender 

6 Fuel 

Lines 

 

7 

Retainer Ring (Fuel Pump Lock) 

8 O-Ring 

9 

Fuel Tank Assembly 

10 Evaporative 

Line