How do I prime my fuel pump?

Step 1 – Find the Fuel Pump. Make sure the car is off and make sure it has been sitting for at least a couple hours. Step 2 – Flip the Switch. There should be a prime switch located on the fuel pump line. Step 3 – Close the Hood and Clean Up. Close the…

Step 1 – Find the Fuel Pump. Make sure the car is off and make sure it has been sitting for at least a couple hours. Step 2 – Flip the Switch. There should be a prime switch located on the fuel pump line. Step 3 – Close the Hood and Clean Up. Close the hood of the car and clean up your work area. Step 4 – Test the Car. Click to see full answer. In this way, how do I prime my fuel system? How to Prime a Fuel System Open the hood of the vehicle and locate the fuel pump; it is usually found between the fuel tank and the first fuel filter. Open the bleed plug on the fuel filter closest to the fuel tank. Open the fuel supply valve to allow fuel to flow from the pump to the filter. Subsequently, question is, how do you prime a fuel pump after running out of gas? Any time a vehicle runs out of fuel and more fuel is added, the key should be turned to the ‘On’ position then back to the ‘Off’ position three or four times to prime the fuel pump. Priming the fuel pump will remove any air that may have gotten into the lines as a result of the vehicle running out of fuel. Subsequently, one may also ask, what causes fuel pump not to prime? The most common cause of the fuel system not holding pressure up to the injectors is the fuel pump inside the fuel tank. If the pressure drops then the pump has to prime the system to bring the pressure high enough to start and run the engine.How long should a fuel pump prime?You should have 300 kPa/ 43.5 psi after a pump run cycle, maybe 2. Then monitor the fuel pressure for 20 minutes to see if fuel leaks out of supply side.

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