Replacing The Fuel Pump In Your 370Z: Step-By-Step Guide

The fuel pump in a Nissan 370Z is located in the vehicle's gas tank and is powered by a compact electric motor. The average cost of replacing a fuel pump in a Nissan 370Z is between $678 and $2086.52, with labour costs estimated between $106 and $133, and parts between $1,379 and $1,834. The fuel pump delivers gas from the fuel tank to the fuel injectors and must deliver the right amount of fuel and at a high enough pressure to keep the engine running smoothly. A failing fuel pump will not create enough pressure in the fuel system, possibly causing a loss of engine power or preventing the car from starting.

Disconnect the battery

Disconnecting the battery is the first step in replacing the fuel pump in a Nissan 370Z. This is a crucial safety precaution to reduce the chance of a fire when working on the fuel pump.

To begin, locate the battery in the engine bay of the 370Z. It is typically located in the front of the vehicle, near the firewall that separates the engine bay from the passenger compartment. Once you have located the battery, you will need to identify the negative terminal. This is usually marked with a "-" symbol or a black cover.

Before disconnecting the battery, ensure that you have the necessary tools and safety equipment. Wear protective gloves and eye protection to shield yourself from any battery acid. You will also need a wrench or socket that fits the battery terminal nut. Place a towel or cardboard under the battery to catch any acid that may spill during the process.

Now, use your wrench or socket to loosen the nut that secures the negative battery cable to the terminal. Do not allow the wrench to touch both the positive and negative terminals simultaneously, as this could cause a short circuit. Once the nut is loose, carefully remove the cable from the terminal. Ensure that the cable does not touch any metal parts of the vehicle, as this could cause a spark and potentially lead to a fire.

With the battery cable disconnected, you can now safely proceed with the next steps of replacing the fuel pump. Remember to dispose of the old battery properly at a designated recycling center or automotive store.

Remove the access cover

To remove the access cover, start by disconnecting the battery to reduce the chance of a fire. This is an important safety precaution when working with the fuel system. Next, determine whether the fuel pump is located inside or outside the fuel tank. If it is inside the tank, you will need to remove the access cover to access the pump. In some cases, you may need to drain the fuel before removing the access panel.

The access cover is usually located above the fuel tank in the passenger compartment. Remove any screws or fasteners securing the cover in place. Once the screws are removed, you may need to use a pry bar or a flat-head screwdriver to gently pry the cover off. Be careful not to damage the surrounding area.

With the access cover removed, you will now have access to the fuel pump. Before removing the pump, make sure to take note of the wiring and hoses connected to it. You will need to disconnect these carefully before removing the pump. It is also recommended to take pictures or make notes on the orientation of the pump and its components to ensure proper installation of the new pump.

In addition to removing the access cover, you may also need to remove the passenger seat for easier access to the fuel pump. This will provide more room to work and facilitate the removal and installation process. Remember to work safely and carefully when performing these tasks to avoid any damage to your vehicle or injury to yourself.

Replace the pump and pre-pump filter screen

To replace the fuel pump and pre-pump filter screen on a Nissan 370Z, you will first need to disconnect the battery to reduce the chance of a fire. Next, locate the fuel pump. If it is inside the fuel tank, you will need to remove the access cover. In some cases, you may need to drain the fuel before removing the access panel. With the cover off, you can then replace the pump and pre-pump filter screen.

If the pump is outside the tank, you will need to disconnect the fuel lines before removing the pump. Once the old pump is removed, you can install the new one and reconnect the fuel lines.

It is recommended that you replace the fuel filters at the same time as the fuel pump. This includes the intake screen for in-tank fuel pumps. Additionally, on some vehicles, the fuel pump relay is known to fail, so it is good practice to replace the relay when the pump is replaced.

Working with the fuel system can be dangerous, so take all necessary precautions to prevent a fire. Always have a professional handle this type of repair unless you are very experienced in auto repair.

Reattach fuel lines

Reattaching the fuel lines is a crucial step in replacing the fuel pump of a Nissan 370Z. Here is a detailed, step-by-step guide on how to do it:

Before beginning the process of reattaching the fuel lines, it is important to ensure that the fuel pump is correctly positioned and secured in the fuel tank. Once the pump is in place, you can start reconnecting the fuel lines.

First, identify the fuel lines that were disconnected during the removal process. These lines are responsible for carrying fuel from the tank to the engine. There should be two lines: the supply line and the return line. Make sure that these lines are not damaged and are clear of any debris or obstructions.

Next, you will need to attach the fuel lines to the corresponding ports on the fuel pump. The supply line will connect to the outlet port on the pump, while the return line will connect to the inlet port. Ensure that the connections are secure and tight to prevent any leaks.

When reattaching the fuel lines, it is important to use new sealing rings or gaskets to ensure a tight seal. These sealing components help prevent fuel leaks, which can be dangerous. Make sure that the rings or gaskets are correctly sized and compatible with your vehicle's fuel system.

After the fuel lines are securely connected, you should inspect the lines for any signs of damage or wear. Check for cracks, leaks, or loose connections. If any issues are found, address them immediately to ensure the safe operation of your vehicle.

Finally, once the fuel lines are reattached and inspected, you can refill the fuel tank. It is recommended to keep the tank at least a quarter full to maximize the life of the new fuel pump and to ensure proper lubrication of the pump components.

Remember, working with the fuel system can be dangerous, so take all necessary precautions to avoid the risk of fire or injury. Always refer to the vehicle's repair manual for specific instructions and safety guidelines when performing maintenance or repairs.

Check for leaks

When replacing the fuel pump of a Nissan 370Z, it is important to check for leaks. Here are some detailed instructions on how to do this:

Before starting the replacement process, disconnect the battery to reduce the chance of a fire. This is an important safety precaution when working with the fuel system.

If the fuel pump is located inside the fuel tank, remove the access cover above the tank in the passenger compartment. In some cases, you may need to drain the fuel before removing the access panel. If there is no access panel, lower the fuel tank from the vehicle to access the pump.

Once you have accessed the fuel pump, remove the fuel pump supply and return hoses, as well as any EVAP system hoses and electrical connections. Take note of the routing and positioning of these hoses and connections for proper reassembly.

Install the new fuel pump, making sure to attach any reusable brackets and pick-up screens from the old pump. If your vehicle uses an in-line external filter, it is recommended to replace it at this time.

Re-establish all the hoses and electrical connections that were previously removed. Ensure that everything is securely connected and routed correctly.

Add fuel to the tank and run the engine to test for leaks. This step is crucial to ensure that your fuel system is functioning properly and there are no fuel leaks. Keep an eye out for any fuel leaks or odors.

If you notice any leaks or smell gasoline, immediately turn off the engine and do not attempt to start or drive the vehicle. Have the car towed to a qualified mechanic or repair shop for further inspection and repair. Do not park the vehicle inside your house or under a covered structure until the leak has been addressed.

Additionally, if the fuel filter has not been replaced recently, it is recommended to install a new one when replacing the fuel pump. This will help ensure the proper functioning and longevity of your fuel system.

Frequently asked questions