If the fuel pump in your vehicle becomes worn and stops working efficiently, you will need to undertake fuel pump removal. Without a working fuel pump, your car will not operate because this vital component pushes the gas from the gas tank to the engine. Fuel pump removal isn’t too complex a procedure, although it can be tricky if the fuel pump is located in the gas tank.
Depressurizing the System
Always work in an area that’s properly ventilated. Since you’re working around gasoline, you should keep a fire extinguisher nearby in case of any problems.
The first thing you will need to do is remove the pressure in your fuel system. To do this, remove the fuel cap first. Using your owner's manual, locate the fuse for your fuel pump and remove it. Keep it safely in the car or in your toolbox, as you will need to replace it after you fit the new part.
To isolate any other potential dangers, disconnect the cable from the negative terminal of your car battery.
Unbolting the Fuel Pump
If your fuel pump isn’t located inside the gas tank, you will have a much easier job to complete. You can either slide under the car to locate it or raise the rear of the car with a trolley jack and secure it on jack stands. Be sure to use wooden blocks under the front wheels first and apply the handbrake to stop the vehicle from rolling forward.
To find the fuel pump, trace the fuel line from the tank. The pump will be located just in front of it. It can be on either the left or right side of the car and is usually located on the same side as you fill your tank.
The fuel pump might be located in a sleeve that is used to insulate it. Place a container to catch any fuel leakage underneath the pump and unbolt it with your wrenches. It will drop down slightly, but you won’t be able to remove it yet.
Very carefully loosen the fitting or the hose clamp holding the low-pressure side of the fuel line to the fuel pump. When this is done, loosen the fuel line on the other side of the fuel pump and lift the pump out. The wiring for the pump will still be connected, so your fuel pump removal isn’t complete yet.
Removing an In-Tank Fuel Pump
If your car has an in-tank fuel pump, you won’t need to raise the back end of the vehicle because you can remove it from the inside of the vehicle.
To do this, you first need to discover where the access point is. It will either be under the back seat of your car or under the carpeting in the trunk.
An in-tank fuel pump will be connected to the fuel lines at the top and bottom of the pump. Using the wrenches, disconnect the fuel line. Make sure that a container is in place to catch any leakage.
Disconnecting the Wiring
The final step in fuel pump removal is to disconnect the wiring. Two wires will be attached to the fuel pump, regardless of whether it’s located under the car or in the tank. One of the wires will be positive and the other negative. Note which is which so you’ll be able to re-connect them properly. They will be held on by small bolts or, in some instances, by screws. Loosen and remove the bolts and take out the fuel pump. This completes the fuel pump removal.