How to use Fuel Line Disconnect Tools and Work With Late-Model Quick-Disconnect Fuel Lines?

Before disconnecting the fuel line, you should follow the approved Holden technique of depressurising the fuel system.

Depressurisation Overview:


Remove fuel pump relay from underbonnet relay centre (located on drivers side of engine bay)

Crank engine and let run until it stops

Crank a further two to three times.

This will take out any pressure in the fuel line and stop you from possibly getting a face full of petrol when you disconnect the coupling

This is the proper tool set:

You get multiple sizes, but you only need one.

So. Step one is to get the appropriate size clip.

Then you want to put the tool over the solid part of the fuel line.

You want the smaller part of the tool to be able to go under the collar of the connector.

There are 4 prongs inside the connector, which is what you're disengaging when you use the clip. To disengage them, push the tool into the connector and wiggle the hose until you feel the clips disengage.

You may need to push the fuel hose towards the connector while pushing the connector in, depends on the firmness of the clips.