Replacing Fuel Pump Strainer: Step-By-Step Guide For Diyers

The fuel pump strainer is an oblong filter made of fine mesh material that is fitted over the fuel pick-up tube at the bottom of the fuel pump. It is designed to keep contaminants out of the fuel pump and protect it from failure. When the strainer gets clogged, it restricts the flow of fuel into the pump, which can lead to engine issues such as reduced power and difficulty starting. To replace the strainer, one must first remove the electrical connector from the fuel gauge sending unit and then detach the innards from the outside container by unclipping plastic clips. Next, remove the strainer stay clip using a small flat screwdriver. Get the exact OEM part for the new strainer and install it by reinstalling the stay clip. Finally, mate back the two parts and ensure everything is securely connected.

How to Change a Fuel Pump Strainer

Disconnect the battery and remove the gas cap

Disconnecting the battery and removing the gas cap are the first steps to take when changing a fuel pump strainer. This is because the gas cap releases pressure, and disconnecting the battery is a safety precaution.

To disconnect the battery, you will need to first identify the battery negative lead. This is usually clearly marked in black or with a '-' symbol. Once located, use the appropriate tool to disconnect the lead. Typically, this will be a wrench or socket that fits the battery terminal. Loosen the terminal clamp and remove the lead.

It is important to note that fuel systems are pressurised and contain flammable liquids. Therefore, safety precautions are crucial when working on any part of the fuel system, including changing the fuel pump strainer. Ensure you are in a well-ventilated area and avoid any sources of ignition, such as lit cigarettes or sparks from power tools. Always refer to the vehicle's repair manual for specific instructions and safety information.

Removing the gas cap is a simple task, but it is an important step in relieving pressure from the fuel system. Simply twist the gas cap in a counter-clockwise direction until it is free from the filler neck. Place the gas cap in a safe location, as you will need to replace it once the repair is complete.

With the battery disconnected and the gas cap removed, you can now proceed to the next steps of changing the fuel pump strainer. Remember to refer to a reliable repair manual or seek guidance from a qualified mechanic if you are unsure about any part of the process.

Remove the innards from the outside container

To remove the innards from the outside container, you will need to unclip the plastic clips holding the two parts together. Depending on the make and model of your car, there may be three plastic clips to unclip. Once you have unclipped the plastic clips, simply pull up to separate the two parts.

It is important to note that you should take extra care when performing this step, as the parts may be delicate and prone to breakage. Additionally, make sure to have a container ready to catch any fuel that may spill or leak during the process.

In some cases, you may need to use a small flat screwdriver to help pry off the clips. This will help ensure that you can fully remove the innards from the outside container without damaging any of the surrounding components.

Once the innards are removed, you will be able to access the fuel pump strainer and other internal components for further inspection, cleaning, or replacement. Remember to refer to a qualified mechanic or a trusted car repair guide for specific instructions pertaining to your vehicle.

Remove the strainer stay clip

To remove the strainer stay clip, you will need a small flat screwdriver. This is one of the toughest parts of the process, as it involves prying off the clip. You can use a small amount of silicone grease and two flat-head screwdrivers, pressing down on two sides to squeeze the clip back on.

The strainer stay clip is what holds the fuel pump strainer in place, so it is important to ensure that it is securely attached before proceeding. Once the clip is removed, you can carefully take out the strainer. Be cautious not to bend any wires or tubes that may be attached to the strainer, as this could cause damage.

It is also important to note that the strainer should only be removed if it is clogged or damaged. A functioning strainer is essential for keeping the fuel pump free of contaminants, which can lead to fuel pump failure. If the strainer is not visibly clogged and the fuel pump is functioning properly, there is no need to remove or replace it.

Additionally, make sure to have a container ready to catch any fuel that may leak or spill during the removal process, as well as rags to clean up any spills. Always put safety first when working with vehicles and flammable substances.

Remove the strainer

To remove the strainer, you will first need to disconnect the battery and remove the gas cap to release pressure. Next, remove the middle seats and the side trim and plastic footstep. You may need to use a flat-head screwdriver for this step.

Now, remove the metal cover by gently prying it off with a screwdriver. Be careful not to bend the float wire, as this will cause the gauge to be incorrect. Once the metal cover is removed, you will see the fuel pump assembly. Disconnect the rubber hose and connector, and then remove the banjo bolt using a socket.

At this point, you can carefully remove the entire pump assembly. Again, be cautious not to bend the float wire. Now, remove the rubber gasket and the retaining clip that holds the strainer in place. The strainer should now be visible at the bottom of the fuel pump. Gently remove the strainer by pulling it out.

It is important to note that you should have a container ready to catch any fuel that may spill or drain during this process, as well as rags to clean up any spills. Additionally, always take the necessary safety precautions when working with vehicles and flammable liquids.

Install a new strainer

To install a new strainer, you will need to purchase a new fuel pump strainer. You cannot buy the OEM fuel strainer by itself, so you will need to buy a new fuel pump that comes with a new strainer.

Once you have your new fuel pump and strainer, you can begin the installation process. First, disconnect the battery and remove the gas cap to release pressure. Next, remove the necessary parts, including the middle seats, side trim, and plastic footstep. You may also need to remove the rear seats and plastic covers to access all the bolts.

Now, you can remove the old fuel pump assembly. Be careful not to bend the float wire, as this can affect your fuel gauge. Once the old fuel pump assembly is removed, you can install the new one. Make sure to lubricate the area with a compatible product, such as Marvel's Mystery Oil, to make the process easier.

Finally, reconnect the battery and turn on the vehicle to test your work. If everything is functioning properly, you can reinstall the carpet, trim, plastic side steps, and seats.

It is important to note that this process may vary depending on your vehicle's specific make and model. Always refer to your owner's manual or seek professional assistance if you are unsure about any steps.

Frequently asked questions