DIY: Removing a Push Lock Fuel Line Fitting

Difficulty Level

Tools/Supplies Needed:

• fuel line removal tool
• o-ring dressing
• rag
• cup or container
• safety glasses

Procedure:

• when working on a pressurized system containing a fluid, it is important to wear safety glasses to risk having any fluid spraying in your eyes
• if you are working with the fuel system, make sure the system is bleed from any fuel which can spray in your face
• this can be done by removing the fuel pump relay or fuse, then turn the engine over as if you were going to start it
• there will be a certain amount of fuel which still comes out of the line, so keep a cup or rags handy
• using the fitting removal tools, pick the correct size and clip it onto the fuel line
• push the tool into the fitting, then pull back on the fitting
• the line will come off with little effort
• to reinstall the firing, ensure the line is clean and free of any dirt or debris which can cause sealing issues
• sometimes o-ring dressing can be applies to help with seal seating
• push the fitting back on the line until you hear a clip
• then pull back to make sure it's on properly
• bleed the system from any air
• then pressurize the system and inspect for any leaks

Frequently Asked Questions (FAQ):

Where can I purchase the line disconnect tool?

They are available at a variety of sources such as a hardware store, automotive parts supplier, tool suppliers, or online.

What is the name of the tool shown in the video? It is a "fuel line disconnect set" or "fuel line disconnect tool".

Should I replace the o-ring?

Normally it isn't required to replace the o-ring unless it is damaged or leaking.

Where can I purchase a new o-ring?

A new o-ring can be purchased at an automotive parts supplier or hydraulics supplier.

Video tutorial on how to remove the push lock style fuel line fittings on a vehicle. This is a very common style found on most vehicles today that are used on a variety of applications on the fuel system, but can also be found on other components such as transmission lines. This style fitting does not incorporate a clip that needs to be remove or a tab that has to be depressed. A speciality tool is required which is very inexpensive. You can make your won removal tool as well, but with that comes the risk of damaging the lock on the fitting or having the homemade tool break during the removal process. This particular tutorial was done on a 1997 BMW 540i.