Replacing 2002 Acura Fuel Pump: Step-By-Step Guide

If you're experiencing problems with your 2002 Acura fuel pump, it may be time to consider replacing it. A faulty fuel pump can cause issues with your car's performance and can even leave you stranded if it fails unexpectedly. While it is a labour-intensive job, replacing the fuel pump yourself can save you hundreds of dollars compared to taking your car to a mechanic. This guide will outline the steps and tools required to replace the fuel pump in your 2002 Acura.

Disconnect the battery

Disconnecting the battery is the first step when replacing a fuel pump. This is a safety precaution that needs to be taken to reduce the chance of a fire. It is also important to prevent any electrical shorts and potential fires while working with fuel system components.

To disconnect the battery, locate the battery under the hood of your Acura. Disconnect the negative (black) battery cable. Once the cable is disconnected, you can wrap the end in a towel or shop rag to prevent accidental contact with the negative battery terminal.

It is important to note that disconnecting the battery will cause the vehicle's computer to reset, which may cause the engine light to come on initially. This is normal and the light should turn off after a few driving cycles.

After disconnecting the battery, the next step in replacing the fuel pump is to remove the rear seats to access the fuel pump assembly.

Remove rear seats

To remove the rear seats of a 2002 Acura, you will need a flat-head screwdriver or small pry bar, and a socket set and ratchet.

First, remove any plastic trim pieces that cover the seat mounting bolts. These can be gently pried upwards with a flat-head screwdriver or small pry bar. Next, remove the seat mounting bolts from each seat frame mount using the appropriately-sized socket and ratchet. With the seat mounts free, lift the seat assembly and remove it from the vehicle. It may be helpful to have a friend assist with this step.

With the rear seats removed, you will be able to access the fuel pump through a small flap in the carpet.

Remove fuel pump assembly

To remove the fuel pump assembly of a 2002 Acura, you will first need to disconnect the battery to prevent any electrical shorts and potential fires. Then, you will need to remove the rear seats to access the fuel pump access panel on the floorboard underneath. This will involve removing any plastic trim pieces covering the seat mounting bolts with a flat-head screwdriver or small pry bar, then removing the bolts themselves with a socket and ratchet.

With the seats removed, you can now access the fuel pump through a small flap in the carpet. You may need to cut the carpet with a utility knife to fully reveal the pump cover. Using a Phillips screwdriver, remove the screws securing the pump cover, and pry it upwards for removal.

Disconnect the electrical harness plug and fuel line from the fuel pump. Now, remove the lock ring from the fuel pump with a lock ring wrench, or alternatively, with a large set of water pump pliers or a drift punch and hammer.

With the lock ring removed, you can now lift the fuel pump assembly from the tank. Be sure to lift it up and allow any residual fuel to drain, then maneuver the pump to clear the fuel level sensor arm from the tank opening. The fuel pump assembly can now be removed from the tank.

Reassembly

Once you have removed the old fuel pump, you can begin reassembling your 2002 Acura.

Firstly, install the rubber sealing gasket onto the new fuel pump. Carefully slide the pump into the fuel tank, being mindful not to damage the fuel level sensor arm. Ensure the pump is fully seated and positioned correctly to allow the fuel line and electrical harness plug to be connected.

Next, install the locking ring. It is important to tighten the ring securely to prevent fuel leaks. If necessary, transfer the old fuel line quick-connect coupler to the new fuel pump nipple and attach the fuel line.

Now, connect the fuel pump wiring harness plug. Install the fuel pump cover and fasten the screws. Reinstall the rear seat and tighten the mounting bolts. Put the plastic seat mount trim covers back on.

Finally, reconnect the battery. You can now start the car and examine the pump for any leaks.

Check for leaks

Once you have finished installing the new fuel pump, you can check for leaks by starting the car and examining the pump for wetness. Before you do this, make sure you have reconnected the battery.

If you notice a leak from the top of the tank, this is normally due to the lines connected to the pump or the pump O-ring seal. If the leak occurs more when the tank is full, the seal is most likely the problem. If the leak occurs all the time, the fittings are more likely to be the issue.

You can use a tool such as a portable digital combustible gas detector to sniff around all the fuel lines, hoses, connections, seals, and gaskets from the fuel cap to the fuel injectors.

Frequently asked questions