Are you searching for the best way to start a diesel when it’s out of fuel? When your diesel runs out of fuel, you’re left with only one option: jump-start it. But there are a few steps you first need to do to make this happen. Jump starting can be a tricky process, so this blog will go over some basics to know what to expect.

A guide to restarting a diesel engine when “running on empty” is no longer an option. As you or anybody can see, there isn’t a lot of detail to tell you in this report.

It remains valid for the most part to use long-established knowledge and techniques in dealing with fuel-starved diesel engines.

Thanks to advances in diesel technology since 2000, many of the physical steps for restarting a dry oil burner have disappeared.

It is now possible for vehicles to manually prime the gasoline system. However, knowing what to do in a diesel truck running out of fuel is still essential.

The fuel gauge in the truck tank should always be checked to ensure there is enough fuel.

Your best chance for determining the range of your estimated mileage is to check the fuel-level indicator to ensure that sending units, pumps, and other gasoline systems are in good working order.

Do you know what you/someone should do if (or perhaps when) your machine runs out of fuel?

It is not recommended to start a car without fuel since lubrication could damage the injectors and other parts.

Start with older setups, such as Ford trucks with IDI diesel engines and first-generation Dodge Rams. These vehicles require user input to re-fire their engines.

The fuel pressure in diesel engines is extraordinarily high, as you may know. Air is pulled into the system after the fuel runs out and must be vented out (bled).

Adding fuel is the first step, followed by bled lines and injectors.

This process may be a bit messy, depending on where the fuel-bleed bolt is located in your engine compartment, but it is not as tricky as bleeding a brake system.

An assortment of wrenches is usually used, together with a bottle or other container to collect the “blood” of the primed diesel and a few cloths to clean up the mess.

Here Are The Best Way To Start A Diesel When It’s Out Of Fuel:

  • When mechanically fuelled engines are used, the optimum procedure is to loosen one union nut at a time at the injection pump. Otherwise, look for the bleeder screw. This is more of a bolt located on the housing of the fuel filter. There might also be a faulty Schrader valve in the line, or a tool will be needed for bleeding fuel via the fuel cooler on Ford 6.4L Power Stroke engines from 2008 to 2010.
  • Loosen the union nuts or bleeder nuts by turning them a few times. Don’t altogether remove it/them; delete it/them.
  • By injecting compressed air through the filler neck, you can force fuel and air bubbles out of the system. The battery may be depleted by excessive cranking, leading to overheating.
  • Once all the air has been removed from the fuel system and there are no more bubbles, replace the bleeder union nuts or tighten the bolts on 6.4L’s fuel cooler.
  • Start the engine and see if it works. You should be able to start it.

In addition, newer rigs manufactured after 2000 tend to be more self-serving when it comes to priming. It can be brought up to speed in just a few minutes without ever leaving the driver’s seat when more diesel is added. After the gasoline has been added, the following “how-to” chores must be performed:

  • To prime, the gas system, turn on the ignition (Run position) for 30 seconds without starting the engine. This allows the pump to prime the vehicle system.
  • Crank the engine for 15 seconds after turning off the ignition. You will need to repeat the first and second tasks until it starts (cycle the key). Take a break, then repeat the process until the engine starts after many attempts.
  • Wait one minute before starting the engine again if it starts but immediately stalls. Check for leaks before driving, allowing the engine to idle for several minutes after starting.
  • The vehicle should be towed to the service department of the shop or dealership if it doesn’t start.


What to do if a diesel engine runs out of fuel

Diesel vehicles that have run out of fuel will not restart if any diesel fuel is added to the tank after they have run out. The diesel will not draw gasoline from the tank to the engine if the fuel line is clogged with air. The engine must be fueled with fuel before attempting a successful restart.

Step 1

The gasoline priming pump and bleed screw position may be found in the owner’s handbook. The pump and screw will be positioned near the fuel filter on the engine. A vast push button, rubber bulb, or tiny lever will be used as the priming pump.

Step 2

Turn the bleed screw to loosen it a couple of turns. As the fuel is drawn from the fuel tank to the fuel filter, the slack bleed screw enables air to escape the fuel line.

Step 3

Pump the priming pump until diesel fuel emerges from the leaking bleed screw. Because the priming pump is tiny and your fuel line may contain a lot of air, expect to pump for five to ten minutes before you see fuel pouring out of the bleed screw.

Step 4

Using the screwdriver, tighten the bleed screw.

Try starting the engine typically. Before the engine starts and operates, you may need to rev it for 10 to 15 seconds. If the vehicle engine does not start after 15 seconds, repeat the priming procedure to get additional gasoline into the fuel filter and pump.

How long to wait for the fuel system to prime

To start your engine out of fuel, you will have to prime the fuel system. The vehicle ignition can be turned on without starting the engine. After 30 seconds, turn the ignition off and then crank the engine for 15 seconds. If it doesn’t start, repeat the first task until it starts. After starting the engine, you will need to wait a few seconds before pushing the “gas” button.

How to reset the ECU?

If your diesel engine is not starting, you may need to reset the ECU (engine control unit) before it starts. To do this, you/someone needs to turn the ignition on (Run position) for 30 seconds, but do not start the vehicle engine. 

In this way, the pump can prime the system. Then, turn the ignition off, and while cranking the engine, hold the first and second toggle switches in the “On” position for 15 seconds. The engine will crank for 15 seconds and if it does not start, repeat the first and second task until it starts.

How to prevent fuel delivery issues?

When there is no fuel in the vehicle tank, the engine can still be started by turning the vehicle ignition on but not starting the engine, then turning it off and cranking it again. By doing this process, the fuel pump will be primed. The problem may be a faulty fuel pump if the engine still does not start. The fuel delivery system will need to be cleaned if the fuel pump is replaced. If the fuel delivery system is not cleaned, it will be required to replace the fuel tank.

What are the benefits of using types of diesel?

Diesel engines are different from other engines because they work by using a pump- and-compression system. This is unique. After all, it is not considered a typical engine because it doesn’t use an intake manifold or carburetor. This means that the engine has a much higher compression ratio, which is an excellent benefit because it can withstand a more comprehensive range of temperatures. 

Another advantage is that types of diesel have a much lower power-to-weight ratio than traditional engines. This means they are much more fuel-efficient and have a much lower fuel consumption rate. Another benefit of types of diesel is that they usually don’t need a tune-up or oil change.

What to do if my diesel truck won’t start after the fuel pump has been replaced?

If your diesel truck won’t start after the fuel pump has been replaced, you can continue to try to start it. Doing so will help prime the fuel system. To do this, turn the vehicle ignition on for 30 seconds but do not start the engine. This will allow the pump to be prime the fuel system. 

After turning off the ignition, crank the engine for 15 seconds. When it doesn’t start, repeat the first task (cycle the key).

How to troubleshoot the engine

If your truck engine doesn’t start, you may have to troubleshoot the system. The two most common reasons a vehicle engine won’t start are fuel system and starter issues. The most common fuel system issue is when the fuel pump doesn’t work correctly. 

It can be caused by a clogged fuel filter, corroded fuel lines, a faulty pump, or bad ground connections. The starter issue is the most common cause of a dead engine. If your starter is bad, you will not crank the engine over. 

The starter may be broken, or the battery may be dead. You will know if you have a starter problem because it will not crank the engine over. If it doesn’t crank the engine, you need to replace your starter.

Final Words:

We hope you enjoyed our blog on how to start a diesel when it’s out of fuel. If you’re trying to start a diesel vehicle engine that has no fuel, the key to doing so is to prime the fuel system. This is done by turning the ignition on for 30 seconds with the fuel system shut off, allowing the fuel pump to suck up the diesel. 

Then, turn the ignition off and crank the engine for 15 seconds. If the engine starts, you’re good to go. If not, repeat the process. 

If it continues to fail, there are other measures you can take, such as checking the fuel shut-off valve and the fuel filter. If you or somebody have any questions or concerns, please don’t hesitate to reach out to us in the comment section. Thank you for reading; we (Creative Price) would love to hear from you!

Frequently Asked Questions:

In a diesel engine, what happens when the fuel runs out?

An empty diesel auto begins to suck air because it has no fuel to bring in. It can be disastrous for your diesel car to draw in air through its powerful fuel injectors.

How do you apply an easy start to a diesel engine?

Engines such as generators can be started with Bradex Easy Start, both mobile and stationary. Utilize Bradex Easy Start with a diesel engine by spraying the solution into the intake system while turning the ignition key. This will make your automobile more straightforward to start by increasing the combustibility of the engine.

Can you run out of fuel if you have a diesel?

The diesel runs out when the pump starts to draw in air, destroying the pump and injectors simultaneously. In an air-bound vehicle, the whole fuel system might get filled with air, making it difficult to restart the engine.

What do you do when a diesel engine has been inactive for a long time?

Ensure the battery is in excellent working condition. Run the engine for 30 seconds or more. Once the diesel begins to drip from the loose union, tighten the unions one at a time while the engine is revving. When the oil pump is turned on, it will deliver oil to the bearings and up to the head.

What is the best method to start a diesel engine?

A glow plug is one of the most common ways to start a diesel engine. As with an air intake warmer, glow plugs are powered by the vehicle’s battery. By doing this, the combustion chamber is preheated to a temperature appropriate for cold starting.