Replacing The Fuel Pump In A 1989 Crx: Step-By-Step Guide

If you're looking to replace the fuel pump in your 1989 Honda CRX, you'll need to get your hands on a few tools and parts. It's recommended to gather a new fuel pump, a fuel pump strainer, and a fuel pump tank seal. You'll also need some basic tools like wrenches and sockets.

There are a few steps to the process: first, you'll need to lower the fuel tank and support it with a jack. You'll then need to undo the fuel return line and disconnect the fuel pump pigtail. Once you've accessed the fuel tank, you'll see a circular mount with two metal fuel lines and six bolts – this is the support bracket for the fuel pump. Undo the bolts and carefully pull out the fuel pump mount. Finally, replace the old pump with a new one, and you're good to go! Remember to work in a well-ventilated area to avoid inhaling fumes.

Drop the tank

Dropping the tank is a necessary step in changing the fuel pump of a 1989 CRX. Here is a detailed, step-by-step guide on how to do it:

Firstly, get a few people to help push the car onto ramps from the back. Once the car is securely on the ramps, locate the tank straps and carefully undo them. Slowly lower the tank and support it with a jack.

At this point, you can undo the fuel return line and disconnect the fuel pump pigtail, which is located in the access compartment behind the front seats. Now, partially remove the tank to expose the circular mount with two metal fuel lines. One of these lines is the fuel return line, and the other is a banjo bolt. You will also see six bolts at the furthest end of the fuel tank, which is the support bracket for the fuel pump.

Use a 19 mm socket to remove the main bolt for the fuel pump line, and then a 17 mm wrench to undo the banjo bolt. After undoing these, slowly tilt and pull out the fuel pump mount. Finally, replace the pump and filter strainer. Remember to perform this task in a well-ventilated area to avoid inhaling dangerous fumes.

Disconnect the fuel return line

Disconnecting the fuel return line is a crucial step when changing the fuel pump on a 1989 CRX. Here is a detailed, step-by-step guide on how to do this:

Firstly, locate the fuel return line. This can be found by identifying the two metal fuel lines leading into a circular mount at the furthest end of the fuel tank. One of these lines is the fuel return line. Before disconnecting the line, you will need to lower the fuel tank. This can be done by removing the tank straps and carefully lowering the tank, supporting it with a jack.

Once the tank is lowered, you can begin to disconnect the fuel return line. Use a 17 mm wrench to undo the banjo bolt that secures the fuel return line in place. It is important to take care when undoing this bolt, as fuel may still be present in the line. Ensure you are working in a well-ventilated area to avoid inhaling fumes.

After the banjo bolt is removed, you can then focus on the fuel pump mount. The fuel pump mount is secured by six bolts and can be accessed once the tank is partially lowered. Use a 19 mm socket to remove the main bolt for the fuel pump line, and then proceed to remove the six bolts holding the mount in place. Tilt the mount at an angle as you slowly pull it out.

By following these steps, you will successfully disconnect the fuel return line and be one step closer to changing the fuel pump on your 1989 CRX. Remember to work carefully and always put your safety first when performing any vehicle maintenance.

Disconnect the fuel pump pigtail

Disconnecting the fuel pump pigtail is a straightforward process, but it requires careful attention to safety. Here is a detailed guide on how to do it:

Prepare Your Workspace and Gather Tools

Before beginning any work on the fuel system, ensure you have a safe and comfortable workspace. Put on safety gear, including safety glasses and rubber gloves, to protect yourself from any fuel spills. Additionally, have a fire extinguisher nearby as a precaution.

Disconnect the Negative Battery Terminal

Start by disconnecting the negative battery terminal. This is an important safety measure to prevent any accidental electrical discharges during the process.

Locate the Fuel Pump and Fuel Lines

Identify the fuel pump and the fuel lines connected to it. The fuel lines are typically made of rubber or steel and run from the fuel tank to the engine. Consult your vehicle's manual or online resources to pinpoint their exact location.

Relieve System Pressure

To prevent fuel from spraying out, relieve the system pressure before disconnecting the fuel lines. Locate and remove the fuel pump fuse or relay, then turn on the car and let it run until it stalls, using up any remaining fuel in the lines.

Disconnect the Fuel Pump Harness

Disconnect the fuel pump harness from the tank. Remove the tape and black plastic conduit from the harness, ensuring you do not interfere with the fuel pressure sensor connector.

Cut and Match the Wiring

Cut the wires about two inches away from the electrical connectors. Stagger the cuts by about an inch and a half and strip the wires. Match the old wiring to the new wiring using the diagram provided with the new wiring.

Crimp and Insulate the Wires

Crimp the vehicle wiring to the new wiring harness with the supplied connectors. Ensure no insulation is trapped between the electrical connector crimp. Use a heat gun to shrink the insulation and secure the connections. Keep the heat gun away from any fuel sources.

Re-tape and Finish Up

Once all the connections are secure and insulated, re-tape the wires and install the black plastic conduit. Now you're ready to install a new fuel pump, confident that it will have a secure connection.

Remember, working on a fuel system can be dangerous, so always put safety first. If you're unsure about any steps or feel uncomfortable, don't hesitate to consult a professional mechanic.

Undo the six bolts attaching the fuel pump mount

To undo the six bolts attaching the fuel pump mount, you will need to first take off the tank straps and lower the tank. You can do this by having a few people push the car onto ramps and supporting the tank with a jack. Once the tank is lowered, locate the circular mount with two metal fuel lines leading into it. This is the support bracket for the fuel pump. Use a 19 mm socket to remove the main bolt for the fuel pump line. Then, use a 17 mm wrench to undo the banjo bolt.

Now, you can begin to undo the six bolts attaching the fuel pump mount. As you undo the bolts, tilt the mount at an angle and slowly pull it out. It is important to work in a well-ventilated area as the fumes from the fuel can be dangerous.

Remove and replace the fuel pump

To remove and replace the fuel pump of a 1989 CRX, you will need to remove the fuel tank. You can do this by getting a few people to push the car onto ramps and removing the bolts, plug for the sensor, and lines. Once the tank is lowered, you will need to support it with a jack.

Next, you will need to undo the fuel return line and disconnect the fuel pump pigtail in the access compartment behind the front seats. You will then see a circular mount with two metal fuel lines leading into it. One of these is the fuel return line, and the other is a banjo bolt. Use a 19mm socket to remove the main bolt for the fuel pump line, and a 17mm wrench to undo the banjo bolt.

Now, begin to pull out the fuel pump mount. As you do this, tilt the mount at an angle and pull it out slowly. Once the mount is out, replace the pump and filter strainer. Ensure that you do this in a well-ventilated area to avoid inhaling dangerous fumes.

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