Steps to Restart a Duramax After Running Out of Fuel:
1. Safety First:
* Turn off the ignition.
* Do not attempt to crank the engine without fuel. This can damage the starter motor and fuel pump.
2. Refuel:
* Fill the fuel tank completely. This ensures you have enough fuel to prime the system.
3. Prime the Fuel System:
* Check your fuel filter. If it's old or clogged, replace it.
* Locate the fuel priming pump. It's usually located near the fuel filter or fuel tank.
* Prime the pump. This can be done manually (check your owner's manual for instructions) or by cycling the ignition key a few times (ON, OFF, ON, OFF).
4. Check for Air in the System:
* Look for air bubbles in the fuel lines. If you see any, you'll need to bleed the system.
* Bleed the system. This usually involves opening a bleed valve on the fuel filter or injector lines to release trapped air. Your Duramax owner's manual will provide specific instructions for your model.
5. Start the Engine:
* Turn the key to the ON position. Wait a few seconds to allow the fuel pump to prime the system.
* Turn the key to the START position.
* If the engine doesn't start immediately:
* Keep trying in short bursts (5-10 seconds) to avoid overheating the starter.
* If the engine starts, but runs rough, it may still have air in the system. Continue bleeding it until the engine runs smoothly.
Important Safety Tips:
* Do not attempt to restart the engine without fuel. This can damage your engine.
* Work in a well-ventilated area. Diesel fumes can be harmful.
* Be careful with fuel spills. Diesel fuel is flammable.
* Consult your Duramax owner's manual for detailed instructions on priming the fuel system and bleeding the air.
If you're not comfortable with these steps, it's best to have a qualified mechanic handle the job.
Additional Notes:
* Running out of fuel completely can lead to air in the fuel lines, which can make it difficult to restart the engine.
* Some Duramax models have an automatic fuel priming system. This system will prime the fuel lines when the ignition is turned on.
* If the engine still doesn't start after following these steps, there may be a different issue with your engine. You should consult a qualified mechanic to diagnose the problem.
