Replacing The Fuel Pump In A 1993 Toyota Pickup Truck

If you're looking to replace the fuel pump in your 1993 Toyota Pickup, you'll first need to locate it. The fuel pump is located inside the fuel tank of your vehicle. Before you begin, it's recommended that you consult the 1993 manual for detailed instructions. Once you've located the fuel pump, you can proceed with the replacement process. It's important to note that you may not always need to remove the fuel tank, as some models provide access to the pump through a door or an access panel. This process will require specific tools and mechanical expertise, so if you're uncomfortable with any part of the procedure, it's best to consult a professional mechanic.

Check for an access panel

The first step in changing the fuel pump on your 1993 Toyota Pickup is to check for an access panel. This is because your Toyota may have an access panel under the rear seat, which will make the job a lot easier. To check for the access panel, you will need to remove the bottom cushion on the passenger side and look for it.

If your vehicle does have the access panel, you will simply need to remove the bottom cushion to access the fuel pump. However, if your vehicle does not have the access panel, you will have two more involved options: dropping the tank or cutting your own access panel. Both of these options will take much more time and effort.

If you decide to cut your own access panel, the best way to handle this is with a grinder or a Dremel-type tool. Using a larger tool, such as a Sawzall, will make quick work of the sheet metal, but you risk damaging ancillary items because the working space is tight.

Disconnect the fuel pump assembly

To disconnect the fuel pump assembly of a 1993 Toyota Pickup, follow these steps:

Firstly, ensure you have the necessary tools: a six-point 10mm socket, metric line wrenches, and a flat-blade screwdriver. It is also recommended to wear nitrile gloves as protection against gasoline.

Now, to the task at hand:

• Access the fuel pump: Depending on your model, you may be able to access the fuel pump through an access panel under the rear seat. If your vehicle does not have this access panel, you will need to either drop the tank or cut your own access panel, which can be done using a grinder or Dremel-type tool.
• Unhook the fuel pump assembly: Clean the top of the pump assembly and wire brush the screws, then spray them with penetrating fluid. Remove the hoses and clamps (you may have one or two hoses, depending on your model). Next, remove the fuel line that goes to the engine, ensuring you have previously removed the fuel pump fuse and started the vehicle to relieve the pressure in the system. Cover the line to prevent anything from falling into it. Disconnect the wires by unplugging the connector.
• Prepare to remove the fuel pump assembly: Keep the opening to the gas tank covered to prevent debris from falling in, and clean the electrical connector for a good connection.
• Remove the fuel pump assembly: Gently lift the old pump assembly out of the tank and set it aside, preferably on a workbench, ready for replacement.

At this point, you will have successfully disconnected the fuel pump assembly and can proceed to replace the fuel pump.

Remove the fuel pump assembly

To remove the fuel pump assembly, you will need a six-point 10mm socket, metric line wrenches, a flat-blade screwdriver, a fuel pump sending unit bracket, and a grinder or Dremel-type tool.

First, check for an access panel by removing the bottom cushion on the passenger side and looking for it. If your vehicle does not have an access panel, you will need to either drop the tank or cut your own access panel. Cutting your own access panel will be much more involved and will take a lot more time, but the best way to handle this is with a grinder or a Dremel-type tool.

Once you have gained access to the fuel pump, there are several items to disconnect. Clean the top of the pump assembly and wire brush the screws, then spray them well with penetrating fluid. Number 1 and 2 are hoses and clamps that must be removed (some models only have one hose). Number 3 is the fuel line that goes to the engine. If you have not already done so, remove the fuel pump fuse and start the vehicle to relieve the pressure in the system. Spray the nuts with penetrating fluid. Using the appropriate size line wrenches, hold the fitting that goes to the fuel pump and turn the nut on the line to the front. Be careful not to twist anything off. Cover the line that goes to the front, so nothing gets in it. Number 4 is the connector for the wires that need to be unplugged.

Keep the opening to the gas tank covered so no debris falls in. Clean the electrical connector for a good connection.

The arrow points to one of the seven screws that holds the pump to the tank. Be very careful when removing them, as they all need to come out without being twisted off. A 6-point socket will grab the bolt better than your typical 12-point socket.

Gently lift the old pump assembly out of the tank and set it on your workbench, ready to be replaced.

Replace the fuel pump

Step 1: Check for an access panel

Check if your Toyota 4Runner has an access panel under the rear seat by removing the bottom cushion on the passenger side. This job will be much easier if your model has this access panel.

Step 2: Unhook the fuel pump assembly

After gaining access to the fuel pump, there are several items to disconnect. Clean the top of the pump assembly, then wire brush and spray the screws with penetrating fluid. Remove the hoses and clamps (some models only have one hose), and then the fuel line that goes to the engine. Also, remove the fuel pump fuse and start the vehicle to relieve the pressure in the system. Spray the nuts with penetrating fluid, then, using the appropriate size line wrenches, hold the fitting that goes to the fuel pump and turn the nut on the line to the front. Cover the line that goes to the front so that nothing gets into it. Next, unplug the connector for the wires.

Step 3: Remove the fuel pump assembly

Be careful when removing the screws that hold the pump to the tank, as they all need to come out without being twisted off. A 6-point socket will grab the bolt better than your typical 12-point socket. Keep the opening to the gas tank covered so no debris falls in.

Step 4: Replace the fuel pump

The fuel pump is attached to the fuel pump sending unit bracket. Since the bracket has the fuel line fitting and the wiring, you will likely have to replace it. If yours is in good condition, you can reuse it.

Step 5: Install the pump assembly

Place the fuel pump assembly into the tank. Get a gasket for the assembly to the tank to ensure there are no leaks. Start the mounting screws carefully, and once they are all started, tighten them all down in a cross pattern. Now, hook up the fuel line and tighten it securely. Then, hook up any other hoses and the electrical connector. Start your truck and check for any leaks.

Step 6: Replace the access panel

Finally, replace the access panel, ensuring it is sealed well.

Additional Information

• Six-point 10mm socket
• Metric line wrenches
• Flat blade screwdriver
• Fuel pump sending unit bracket
• Grinder or Dremel-type tool (for 4Runners without an access panel)

Install the pump assembly

Now that you have removed the old fuel pump assembly, you can install the new one. Place the new fuel pump assembly into the tank in the same way that you removed the old one. If your kit did not come with a new gasket for the assembly, be sure to purchase one separately to ensure there are no leaks.

Carefully start the mounting screws, checking that they are all inserted correctly. Once all the screws have been started, tighten them down in a criss-cross pattern. You don't need to overtighten them.

Now, use your line wrenches to hook up the fuel line and tighten it securely. Then, connect any other hoses and the electrical connector. Start your truck and check for any leaks. Repair any leaks immediately.

Keep all parts clean so they seal well.

Frequently asked questions