Katerina Swanson
If you've put the wrong fuel in your Vauxhall Vivaro, don't panic. If you've put less than 4.5 litres of petrol in a diesel Vauxhall Vivaro, you should be fine if you fill the tank with the correct fuel before starting the car. If you've put more than 9 litres of the wrong fuel in your Vauxhall Vivaro, you should get it drained. You can try to siphon the tank yourself, but if you're unable to do so, you can call a mobile fuel drain service for help. They will be able to remove the petrol from your diesel Vauxhall.
| Characteristics | Values |
|---|---|
| Fuel tank removal difficulty | Not difficult |
| Tools required | Jack, sheet, clamp, hose |
| Fuel tank draining options | Disconnect pipes, use manual or electric pump, drain into jerry cans |
| Fuel contamination | Less than 4.5 litres of petrol in a diesel tank may be fine if the tank is then filled with the correct fuel |
| Fuel drain services | Wrong Fuel Drainage Solutions, Mobile Vauxhall Fuel Drains |
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What You'll Learn
- Lowering the tank: Cut hose clamp, loosen bolts, undo fuel lines and cable
- Drain cock: If your car has one, use it to drain the tank
- Siphoning: Disconnect pipes, then suck or pump to start the siphon
- Fuel contamination: If you've put less than 4.5L of the wrong fuel, top up with the correct fuel
- Jerry cans: Empty the tank into cans via the open filler neck
Lowering the tank: Cut hose clamp, loosen bolts, undo fuel lines and cable
Lowering the tank is a straightforward process. First, cut the hose clamp off the filler neck and pull it off. Be sure to place a sheet on the ground under the tank to catch any spillages. Next, loosen the tank bolts, but leave them in to support the tank. You can then undo the fuel lines and cable from the sender unit by pushing the button on the end of the pipes and disconnecting them.
At this point, you can begin to lower the tank. Use a jack to brace one side of the tank at a time, undoing the bolts and lowering the jack as you go. Once both sides are lowered, you can pull the sheet to slide the tank out from under the van. It is recommended that you run the tank down as low as possible before starting, as a full tank can weigh over 50kg and be difficult to handle.
To open the tank, you can use a large G-clamp tightened on the sender locking ring. You can then empty the tank into jerry cans via the open filler neck. Remember to clean the metal parts of the sender with electrical cleaner while it is out. When you are ready to refit the tank, simply follow the above steps in reverse, ensuring you use a new hose clamp on the filler neck. The whole process should take around 2-3 hours if you have the necessary space and tools.
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Drain cock: If your car has one, use it to drain the tank
If your Vauxhall Vivaro is equipped with a drain cock, this is the easiest method to drain the fuel tank. The drain cock is typically located on the bottom of the fuel tank and can be opened by turning it counterclockwise with a wrench or by hand if it has a hand knob. Place a container underneath the drain cock to collect the fuel, and then open the valve. Once the fuel has drained completely, close the valve securely.
If your car does not have a drain cock, you will need to remove the fuel tank and drain it manually. This process is more involved and will require some tools and safety precautions. Before starting, ensure you are wearing protective gear, including gloves and eye protection, and that you are in a well-ventilated area.
Begin by locating the fuel tank and placing a sheet or container underneath it to catch any spills. Then, cut the hose clamp off the filler neck and remove it. Next, loosen the tank bolts but leave them in place to support the tank. Disconnect the fuel lines and cables from the sender unit by pushing the button on the end of the pipes. At this point, you can carefully lower the tank by bracing it with a jack and undoing the bolts. Once the tank is lowered, you can drain the fuel into a suitable container.
Alternatively, you can use a manual pump to drain the fuel tank without removing it. Disconnect the pipe into the filter and fit the pump pipe into the hose or directly into the outlet on the filter. Pump the bulb on the tool to start the siphoning process into a suitable container. This method may require some manual suction to get it started.
If you are uncomfortable performing any of these methods, it is best to consult a professional mechanic or a mobile fuel drain service, which can provide 24/7 assistance in draining contaminated fuel from your Vauxhall Vivaro.
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Siphoning: Disconnect pipes, then suck or pump to start the siphon
To siphon fuel from a Vauxhall Vivaro, you will need to disconnect the pipes from the tank and then suck or pump to start the siphon.
Firstly, locate the fuel tank. It is usually found beneath the car, near the rear wheels. Place a sheet or container underneath the tank to catch the fuel.
Next, disconnect the pipes. You may need to cut the hose clamp off the filler neck and pull it off. Loosen the tank bolts but leave them in place to support the tank. Undo the fuel lines from the sender unit by pushing the button on the end of the pipes and disconnecting them.
Now you can start the siphon by sucking or pumping. If you are sucking, use a tube and take care not to inhale any fumes. You may find it easier to use a mechanical air pump to force air through the tube, increasing the pressure and initiating the flow. Ensure a tight seal around the tube so that air can only enter and exit the tank through the tube.
Monitor the flow of fuel. Once it is flowing freely, gravity will take over, and you can stop pumping or sucking. To stop the siphon, cover the tube, raise it above the fuel level, and remove it.
Remember, siphoning fuel can be dangerous and is illegal in some areas, so always exercise caution and follow safety procedures.
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Fuel contamination: If you've put less than 4.5L of the wrong fuel, top up with the correct fuel
If you have put less than 4.5L of the wrong fuel in your Vivaro, you should be able to fix the issue by topping up with the correct fuel. This is a simple solution, but it is important to act quickly and not to start the engine. Misfuelling is a common mistake, and it is important to address it promptly to avoid costly repairs.
First, do not start your vehicle. If your car is modern and automatic, a few moments with the engine running is unlikely to cause issues, but do not put it in gear or attempt to drive. If you have accidentally filled your tank with premium gas instead of regular gas, you may not experience any negative changes, but you may hear rattling and notice reduced performance. Your car probably won't sustain lasting engine damage, but you should still get it towed and have the tank drained as a precaution.
If you have put diesel in your gasoline tank, your car may not start, but if it does, it will likely smoke. Engine damage is unlikely, but you should still get the vehicle towed and the tank drained. Diesel acts as a lubricant for the fuel system, so thinner gasoline can cause issues with the fuel pump, filter, and injectors.
If you have put gasoline in your diesel tank, this can have a serious impact on your engine. Gasoline is thinner and ignites faster, which can damage the engine's fuel sensors. Once you realize your mistake, stop your car immediately to avoid further damage. Get your car towed and have your system flushed by a technician.
In any of these cases, your fuel tank will need to be drained, and your fuel lines cleaned. If your car insurance or breakdown cover policy includes misfuelling, contact your provider, and they will send someone to drain, flush, and refuel your engine. If not, contact a local repair shop or a breakdown service for a quote.
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Jerry cans: Empty the tank into cans via the open filler neck
If you want to drain your Vivaro fuel tank into jerry cans via the open filler neck, you'll first need to make sure your jerry cans are clean and free of debris. You can do this by rinsing them out with water and then leaving them upside down to drain.
Once your jerry cans are clean and dry, you can start draining your Vivaro fuel tank. Place a sheet on the ground under the tank to catch any spills. Loosen the tank bolts but leave them in place to hold the tank up. Cut the hose clamp off the filler neck and pull it off, then undo the fuel lines and cable from the sender unit.
With the filler neck now accessible, you can start transferring fuel from the tank into your jerry cans. You can do this by using a siphon pump or a jiggle siphon, which you can purchase inexpensively online. Feed the siphon into the filler neck, then start pumping or jiggling to transfer the fuel into your jerry cans.
Make sure to dispose of or store the fuel appropriately once you've finished draining the tank.
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