Ameer Randolph
Removing fuel lines from a VT Commodore is a delicate task that requires careful preparation and execution. Before attempting to disconnect the fuel lines, it is crucial to relieve fuel pressure by depressurizing the fuel system. This can be achieved by removing the fuel pump relay or fuse, ensuring the engine is turned off, and allowing the system to depressurize. Once the fuel system is depressurized, specialized tools or careful manual techniques can be employed to disconnect the fuel lines safely. It is important to note that improper techniques or tools may damage the fuel line connections, so caution and precision are essential.
How to Remove Fuel Lines from VT Commodore
| Characteristics | Values |
|---|---|
| Step 1 | Depressurise the fuel line |
| Step 2 | Fit tool to the fuel line |
| Step 3 | Disconnect the fuel line |
| Tools | Fuel line disconnect tool, pliers, multi grips |
| Notes | Ensure you release the pressure in the fuel lines before removing the clip |
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What You'll Learn
Depressurise the fuel system
Depressurising the fuel system of a VT Commodore is a necessary step before removing the fuel tank or pump. It is also important to ensure no naked flames or other ignition sources are in the immediate area, as well as taking the necessary precautions to avoid fuel spraying onto your skin.
One method to depressurise the fuel system is to remove the fuel cap, which takes the pressure from the tank. Then, open the bonnet and locate the fuse and electrical centre. Remove the fuel pump relay and try to start the engine, letting it run until it dies. Crank the engine a few more times.
Another method is to disconnect the negative battery cable and pull the fuel pump fuse, then crank the engine until you no longer hear any firing. There will still be some residual pressure in the system, so be cautious.
Additionally, you can crack open a fuel line with a wrench, placing a rag over it to catch the expelled gas and prevent spraying.
If you are in a hurry, you can simply grab a towel and let the fuel spray, as it will only be a small amount. It is also recommended to wear safety glasses and ensure all dirt and foreign material is removed from any fuel connections before removal.
Once the fuel system is depressurised, you can proceed with removing the fuel tank or pump.
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Disconnect the fuel line
Disconnecting the fuel line of a VT Commodore requires careful preparation and the right tools. Here is a step-by-step guide to help you through the process:
Firstly, it is important to relieve the fuel pressure before attempting to disconnect the fuel line. This can be done by removing the fuel pump fuse while the car is running, or by following the approved Holden technique of depressurising the fuel system: remove the fuel pump relay from the underbonnet relay centre, crank the engine and let it run until it stops, then crank it a further two to three times.
Next, locate the fuel filter. It is usually accessible from underneath and behind the car, next to the differential on the right side. To make the task easier, back the car up onto ramps to provide ample workspace.
Now, you can begin to disconnect the fuel lines. Some people suggest squeezing the hoses, possibly with pliers, but this can cause them to break easily. An alternative method is to use a pair of multi-grips. Hold in the two clips that the vice grips would normally go on, while pushing the connector back towards the filter. Wiggle the hose end, and it should disconnect.
There are also special tools designed for disconnecting fuel lines, which can be purchased from auto part stores like Holden, Repco, or Supercheap Auto. These tools are fitted onto the fuel line after depressurising, and then the line can be disconnected.
It is important to exercise caution when working with fuel lines, as fuel can be dangerous and difficult to handle. Ensure you are wearing appropriate protective gear and take the necessary precautions to avoid any injury or damage.
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Remove the retainer clip
To remove the retainer clip, you will need to first depressurise the fuel system. This can be done by removing the fuel pump relay from the underbonnet relay centre, which is located on the driver's side of the engine bay. Then, crank the engine and let it run until it stops. Next, crank it a further two to three times.
Now, you can remove the retainer clip. You can do this by hand. Hold in the two clips that you would normally put the vice grips on, while pushing the connector back towards the filter. Wiggle the hose end, and it should disconnect. Then, the other side will be much easier to get off.
There are also tools available to help with this process. A fuel hose disconnect tool can be purchased, or you can make your own tool using a pen lid or the nozzle part of a Selleys container.
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$45.9
Use a disconnect tool
To remove the fuel lines from a VT Commodore, you can use a fuel line disconnect tool. This can be purchased from auto parts stores such as Supercheap, Repco, or Holden. However, some people choose to make their own tool using everyday items like a pen lid, a water bottle, or the nozzle part of a Selleys container.
Before using the disconnect tool, it is important to depressurise the fuel system. This can be done by removing the fuel pump relay from the underbonnet relay centre, which is located on the driver's side of the engine bay. Then, crank the engine and let it run until it stops. You may need to crank it a further two to three times to ensure the system is fully depressurised.
Once the fuel system is depressurised, you can proceed to use the disconnect tool. First, fit the tool to the fuel line. Then, 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, depending on the firmness of the clips.
After the clips are disengaged, you can disconnect the fuel line. Be prepared for some fuel to spill during this process. It is recommended to wear protective gear, such as gloves and eye protection, to avoid getting fuel on your skin or in your eyes.
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Remove the fuel pump relay
To remove the fuel pump relay from a VT Commodore, you must first depressurise the fuel system. This can be done by removing the fuel pump relay from the underbonnet relay centre, which is located on the driver's side of the engine bay. Then, crank the engine and let it run until it stops. You may need to crank it a further two to three times.
Next, raise the vehicle on a hoist or car stands and drain as much fuel as possible from the tank. Disconnect the earth wire from the tank securing clamp, then position a jack under the tank and undo the remaining fuel tank clamp bolts and brackets. Slowly lower the fuel tank and disconnect all fuel lines from the sender unit.
Now, lower the tank all the way and place it on the floor. Undo the metal securing bracket on top of the sender unit and lift the sender unit out of the tank. You should now have access to the fuel pump and can remove it.
It is important to note that the fuel pump relay is a very common fault in this vehicle and may be faulty even if it sounds like it is working. It is recommended to test the relay before going through the process of removing and replacing the fuel pump.
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Frequently asked questions
Before disconnecting the fuel lines, you should follow the approved Holden technique of depressurising the fuel system. You can do this by removing the fuel pump relay from the underbonnet relay centre (located on the driver's side of the engine bay), cranking the engine, and letting it run until it stops. Then crank it a further two to three times.
You can purchase a fuel line disconnect tool from places like Supercheap, Repco, or Bursons. Alternatively, you can make your own tool using the nozzle part of a Selleys container or a pen lid.
First, depressurise the fuel line. Then, fit the tool to the fuel line. Finally, disconnect the fuel line.
The fuel pump relay is located in the underbonnet relay centre, on the driver's side of the engine bay.
You can remove the plastic clips by squeezing the clip sides and pushing and pulling.
