Replacing Fuel Pump In Nissan Murano: Step-By-Step Guide

If your Nissan Murano is making strange noises, backfiring, or struggling to maintain speed, you may need to replace the fuel pump. The fuel pump's job is to deliver gas from the fuel tank to the fuel injectors, and a failing pump can cause a loss of engine power or even prevent the car from starting. While it is possible to replace the fuel pump yourself, it is recommended that you take your car to a repair shop to have it replaced by a professional due to the risk of fire. The cost of replacing a fuel pump varies depending on your location and the age of your vehicle, but you can expect to pay between $562 and $2054 for parts and labor.

Disconnect the battery

Disconnecting the battery is the first step when changing the fuel pump in a Nissan Murano. This is a crucial safety precaution to reduce the chance of a fire when working on fuel pump issues.

To disconnect the battery, you will need to locate the battery terminal and remove the cable from the positive terminal. The positive terminal will be marked with a "+" sign. You may also identify it by its larger size in comparison to the negative terminal. Before proceeding, ensure that you have the necessary tools, such as a wrench or socket set, and safety equipment, including gloves and eye protection.

Once you have located the battery, follow these steps:

• Place the vehicle in park or neutral and engage the parking brake. This will prevent any accidental movement of the vehicle during the process.
• Turn off the engine and remove the keys from the ignition. This is an important safety measure to prevent any accidental startup of the vehicle.
• Open the hood of the vehicle and locate the battery. The battery is typically located in the engine compartment, near the front of the vehicle. Refer to your owner's manual if you need help locating it.
• Identify the positive battery terminal. It will be marked with a "+" sign and is usually covered with a red protective cap.
• Using the appropriate tool, loosen the nut or bolt securing the cable to the positive terminal. Be careful not to touch any metal parts of the battery with your bare hands or tools, as this could cause a short circuit.
• Remove the cable from the positive terminal. You may need to wiggle it gently to detach it completely. Place the cable away from the battery, ensuring it does not touch any metal surfaces.
• Optionally, you can also disconnect the negative battery terminal for added safety. This will completely disconnect the battery from the vehicle's electrical system.
• With the battery disconnected, you can now proceed with the next steps of changing the fuel pump, such as removing the fuel pump access cover or draining the fuel tank if necessary.

Remember to exercise extreme caution when working with the fuel system to prevent the risk of fire or injury. It is always recommended to have a qualified mechanic handle fuel pump replacements unless you are very experienced in auto repair.

Remove the fuel pump access cover

To remove the fuel pump access cover, you will need to locate the access panel above the tank in the passenger compartment. This will require you to move or remove any components blocking access to the panel. Once you have located the access panel, you will need to remove it carefully. Depending on the model of your Nissan Murano, you may need to drain the fuel tank before removing the access panel. This is an important step to prevent any accidental spillage or leakage during the fuel pump replacement process. It is always recommended to refer to the vehicle's repair manual for specific instructions and safety precautions.

The process of removing the access cover involves unscrewing or unbolting any fasteners or clamps holding the cover in place. Make sure to place the removed fasteners in a safe location, as you will need them later when reinstalling the access cover. With the fasteners removed, carefully lift or slide the access cover away from the opening. Set it aside in a clean, safe place to avoid damaging it or losing any components.

At this point, you should be able to see the fuel pump assembly inside the tank. Before proceeding, it is crucial to disconnect the negative battery terminal to reduce the risk of fire during the replacement process. Additionally, make sure to wear appropriate safety gear, such as gloves and eye protection, and have a fire extinguisher nearby as a safety precaution.

Now that the fuel pump access cover has been successfully removed, you can proceed with the next steps of replacing the fuel pump, which include disconnecting the fuel pump supply and return hoses, EVAP system hoses, and electrical connections. Remember to refer to a reliable repair manual or seek assistance from a qualified mechanic if you are unsure about any steps during the fuel pump replacement process.

Replace the pump and pre-pump filter screen

To replace the fuel pump and pre-pump filter screen in a Nissan Murano, you'll first need to disconnect the battery to reduce the chance of a fire. Next, determine whether the pump is located inside or outside the fuel tank.

If the pump is inside the fuel tank, you'll need to remove an access cover to reach it. In some cases, you may need to drain the fuel before removing the access panel. Once you have access to the pump, go ahead and remove it, along with the pre-pump filter screen.

If the pump is outside the tank, simply disconnect the fuel lines and remove the pump.

In both cases, you'll need to remove the fuel pump supply and return hoses, as well as EVAP system hoses, and electrical connections to the pump.

Once the old pump is out, attach any reusable brackets and the new pre-pump filter screen to the new pump, and install the new pump. Re-establish all hoses and electrical connections.

Finally, add fuel to the tank and run the engine to test for leaks.

Reconnect the fuel lines

To reconnect the fuel lines of your Nissan Murano, follow these steps:

First, ensure that the fuel pump is correctly installed and secured in place. Check that all the necessary brackets and pick-up screens have been attached to the new pump.

Next, reconnect the fuel pump supply and return hoses, as well as the EVAP system hoses. Ensure that all connections are secure and that there are no signs of damage or leaks.

Then, re-establish the electrical connections to the fuel pump. Check that all wires are properly connected and that there is no damage to the wiring.

Once everything is connected, add fuel to the tank and start the engine to test for leaks. It is important to ensure that there are no fuel leaks, as this can be a safety hazard.

If there are no leaks detected, your Nissan Murano's fuel lines should now be successfully reconnected, and you can proceed with confidence in the safety and functionality of your vehicle.

Remember, working with the fuel system can be dangerous, so it is important to take all necessary precautions and, if you are uncomfortable or inexperienced, consult a professional mechanic.

Check for fuel leaks

Once the fuel pump has been replaced, the mechanic will check for fuel leaks. This is done by running the engine to see if there are any leaks or fuel odors. If there are any signs of a fuel leak, the car should not be started or driven, and it should not be parked inside a house or under a covered structure. Instead, the car should be towed to a shop for inspection and repair.

It is important to note that working with the fuel system is dangerous, and all precautions should be taken to avoid starting a fire. If you are not very experienced in auto repair, it is recommended to leave this job to a professional.

In addition to checking for fuel leaks, the mechanic will also test the engine to ensure that the problem has been solved. This may involve testing the fuel pump to ensure it is functioning properly and delivering the right amount of fuel at the correct pressure. The mechanic may also check the electrical and mechanical condition of the fuel pump, as well as the fuel filter and electrical circuit.

By performing a thorough inspection and taking the necessary precautions, the mechanic can ensure that the fuel pump replacement has been completed safely and effectively, and that the vehicle is ready to be driven again.

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